diff --git a/python/analysis/network/qgsgraphanalyzer.sip.in b/python/analysis/network/qgsgraphanalyzer.sip.in
index c8edc14367c..b42d419cadd 100644
--- a/python/analysis/network/qgsgraphanalyzer.sip.in
+++ b/python/analysis/network/qgsgraphanalyzer.sip.in
@@ -30,7 +30,8 @@ Solve shortest path problem using Dijkstra algorithm
 :param source: source graph
 :param startVertexIdx: index of the start vertex
 :param criterionNum: index of the optimization strategy
-:param resultTree: array that represents shortest path tree. resultTree[ vertexIndex ] == inboundingArcIndex if vertex reachable, otherwise resultTree[ vertexIndex ] == -1
+:param resultTree: array that represents shortest path tree. resultTree[ vertexIndex ] == inboundingArcIndex if vertex reachable, otherwise resultTree[ vertexIndex ] == -1.
+Note that the startVertexIdx will also have a value of -1 and may need special handling by callers.
 :param resultCost: array of the paths costs
 %End
 
diff --git a/python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py b/python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py
index 1b18565d711..5564b3ba6ef 100644
--- a/python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py
+++ b/python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py
@@ -37,10 +37,12 @@ from qgis.core import (QgsWkbTypes,
                        QgsFeatureSink,
                        QgsFeatureRequest,
                        QgsGeometry,
+                       QgsGeometryUtils,
                        QgsFields,
                        QgsPointXY,
                        QgsField,
                        QgsProcessing,
+                       QgsProcessingParameterBoolean,
                        QgsProcessingParameterEnum,
                        QgsProcessingParameterPoint,
                        QgsProcessingParameterField,
@@ -75,7 +77,9 @@ class ServiceAreaFromLayer(QgisAlgorithm):
     SPEED_FIELD = 'SPEED_FIELD'
     DEFAULT_SPEED = 'DEFAULT_SPEED'
     TOLERANCE = 'TOLERANCE'
+    INCLUDE_BOUNDS = 'INCLUDE_BOUNDS'
     OUTPUT = 'OUTPUT'
+    OUTPUT_LINES = 'OUTPUT_LINES'
 
     def icon(self):
         return QIcon(os.path.join(pluginPath, 'images', 'networkanalysis.svg'))
@@ -146,14 +150,24 @@ class ServiceAreaFromLayer(QgisAlgorithm):
                                                    self.tr('Topology tolerance'),
                                                    QgsProcessingParameterNumber.Double,
                                                    0.0, False, 0, 99999999.99))
-
+        params.append(QgsProcessingParameterBoolean(self.INCLUDE_BOUNDS,
+                                                    self.tr('Include upper/lower bound points'),
+                                                    defaultValue=False))
         for p in params:
             p.setFlags(p.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
             self.addParameter(p)
 
-        self.addParameter(QgsProcessingParameterFeatureSink(self.OUTPUT,
-                                                            self.tr('Service area (boundary nodes)'),
-                                                            QgsProcessing.TypeVectorPoint))
+        lines_output = QgsProcessingParameterFeatureSink(self.OUTPUT_LINES,
+                                                         self.tr('Service area (lines)'),
+                                                         QgsProcessing.TypeVectorLine, optional=True)
+        lines_output.setCreateByDefault(True)
+        self.addParameter(lines_output)
+
+        nodes_output = QgsProcessingParameterFeatureSink(self.OUTPUT,
+                                                         self.tr('Service area (boundary nodes)'),
+                                                         QgsProcessing.TypeVectorPoint, optional=True)
+        nodes_output.setCreateByDefault(False)
+        self.addParameter(nodes_output)
 
     def name(self):
         return 'serviceareafromlayer'
@@ -176,6 +190,10 @@ class ServiceAreaFromLayer(QgisAlgorithm):
         defaultSpeed = self.parameterAsDouble(parameters, self.DEFAULT_SPEED, context)
         tolerance = self.parameterAsDouble(parameters, self.TOLERANCE, context)
 
+        include_bounds = True # default to true to maintain 3.0 API
+        if self.INCLUDE_BOUNDS in parameters:
+            include_bounds = self.parameterAsBool(parameters, self.INCLUDE_BOUNDS, context)
+
         fields = startPoints.fields()
         fields.append(QgsField('type', QVariant.String, '', 254, 0))
         fields.append(QgsField('start', QVariant.String, '', 254, 0))
@@ -240,12 +258,11 @@ class ServiceAreaFromLayer(QgisAlgorithm):
         feedback.pushInfo(QCoreApplication.translate('ServiceAreaFromLayer', 'Calculating service areas…'))
         graph = builder.graph()
 
-        (sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
-                                               fields, QgsWkbTypes.MultiPoint, network.sourceCrs())
+        (point_sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
+                                                     fields, QgsWkbTypes.MultiPoint, network.sourceCrs())
+        (line_sink, line_dest_id) = self.parameterAsSink(parameters, self.OUTPUT_LINES, context,
+                                                         fields, QgsWkbTypes.MultiLineString, network.sourceCrs())
 
-        vertices = []
-        upperBoundary = []
-        lowerBoundary = []
         total = 100.0 / len(snappedPoints) if snappedPoints else 1
         for i, p in enumerate(snappedPoints):
             if feedback.isCanceled():
@@ -255,35 +272,92 @@ class ServiceAreaFromLayer(QgisAlgorithm):
             origPoint = points[i].toString()
 
             tree, cost = QgsGraphAnalyzer.dijkstra(graph, idxStart, 0)
-            for j, v in enumerate(cost):
-                if v > travelCost and tree[j] != -1:
-                    vertexId = graph.edge(tree[j]).fromVertex()
-                    if cost[vertexId] <= travelCost:
-                        vertices.append(j)
 
-            for j in vertices:
-                upperBoundary.append(graph.vertex(graph.edge(tree[j]).toVertex()).point())
-                lowerBoundary.append(graph.vertex(graph.edge(tree[j]).fromVertex()).point())
+            vertices = set()
+            area_points = []
+            lines = []
+            for vertex, start_vertex_cost in enumerate(cost):
+                inbound_edge_index = tree[vertex]
+                if inbound_edge_index == -1 and vertex != idxStart:
+                    # unreachable vertex
+                    continue
 
-            geomUpper = QgsGeometry.fromMultiPointXY(upperBoundary)
-            geomLower = QgsGeometry.fromMultiPointXY(lowerBoundary)
+                if start_vertex_cost > travelCost:
+                    # vertex is too expensive, discard
+                    continue
 
-            feat.setGeometry(geomUpper)
+                vertices.add(vertex)
+                start_point = graph.vertex(vertex).point()
 
-            attrs = source_attributes[i]
-            attrs.extend(['upper', origPoint])
-            feat.setAttributes(attrs)
-            sink.addFeature(feat, QgsFeatureSink.FastInsert)
+                # find all edges coming from this vertex
+                for edge_id in graph.vertex(vertex).outgoingEdges():
+                    edge = graph.edge(edge_id)
+                    end_vertex_cost = start_vertex_cost + edge.cost(0)
+                    end_point = graph.vertex(edge.toVertex()).point()
+                    if end_vertex_cost <= travelCost:
+                        # end vertex is cheap enough to include
+                        vertices.add(edge.toVertex())
+                        lines.append([start_point, end_point])
+                    else:
+                        # travelCost sits somewhere on this edge, interpolate position
+                        interpolated_end_point = QgsGeometryUtils.interpolatePointOnLineByValue(start_point.x(), start_point.y(), start_vertex_cost,
+                                                                                                end_point.x(), end_point.y(), end_vertex_cost, travelCost)
+                        area_points.append(interpolated_end_point)
+                        lines.append([start_point, interpolated_end_point])
 
-            feat.setGeometry(geomLower)
-            attrs[-2] = 'lower'
-            feat.setAttributes(attrs)
-            sink.addFeature(feat, QgsFeatureSink.FastInsert)
+            for v in vertices:
+                area_points.append(graph.vertex(v).point())
 
-            vertices[:] = []
-            upperBoundary[:] = []
-            lowerBoundary[:] = []
+            feat = QgsFeature()
+            if point_sink is not None:
+                geomPoints = QgsGeometry.fromMultiPointXY(area_points)
+                feat.setGeometry(geomPoints)
+                attrs = source_attributes[i]
+                attrs.extend(['within', origPoint])
+                feat.setAttributes(attrs)
+                point_sink.addFeature(feat, QgsFeatureSink.FastInsert)
+
+                if include_bounds:
+                    upperBoundary = []
+                    lowerBoundary = []
+
+                    vertices = []
+                    for vertex, c in enumerate(cost):
+                        if c > travelCost and tree[vertex] != -1:
+                            vertexId = graph.edge(tree[vertex]).fromVertex()
+                            if cost[vertexId] <= travelCost:
+                                vertices.append(vertex)
+
+                    for v in vertices:
+                        upperBoundary.append(graph.vertex(graph.edge(tree[v]).toVertex()).point())
+                        lowerBoundary.append(graph.vertex(graph.edge(tree[v]).fromVertex()).point())
+
+                    geomUpper = QgsGeometry.fromMultiPointXY(upperBoundary)
+                    geomLower = QgsGeometry.fromMultiPointXY(lowerBoundary)
+
+                    feat.setGeometry(geomUpper)
+                    attrs[-2] = 'upper'
+                    feat.setAttributes(attrs)
+                    point_sink.addFeature(feat, QgsFeatureSink.FastInsert)
+
+                    feat.setGeometry(geomLower)
+                    attrs[-2] = 'lower'
+                    feat.setAttributes(attrs)
+                    point_sink.addFeature(feat, QgsFeatureSink.FastInsert)
+
+            if line_sink is not None:
+                geom_lines = QgsGeometry.fromMultiPolylineXY(lines)
+                feat.setGeometry(geom_lines)
+                attrs = source_attributes[i]
+                attrs.extend(['lines', origPoint])
+                feat.setAttributes(attrs)
+                line_sink.addFeature(feat, QgsFeatureSink.FastInsert)
 
             feedback.setProgress(int(i * total))
 
-        return {self.OUTPUT: dest_id}
+        results = {}
+        if point_sink is not None:
+            results[self.OUTPUT] = dest_id
+        if line_sink is not None:
+            results[self.OUTPUT_LINES] = line_dest_id
+        return results
diff --git a/python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py b/python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py
index 27a23ad49db..aae814e5e05 100644
--- a/python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py
+++ b/python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py
@@ -36,9 +36,11 @@ from qgis.core import (QgsWkbTypes,
                        QgsFeature,
                        QgsFeatureSink,
                        QgsGeometry,
+                       QgsGeometryUtils,
                        QgsFields,
                        QgsField,
                        QgsProcessing,
+                       QgsProcessingParameterBoolean,
                        QgsProcessingParameterEnum,
                        QgsProcessingParameterPoint,
                        QgsProcessingParameterField,
@@ -73,7 +75,9 @@ class ServiceAreaFromPoint(QgisAlgorithm):
     SPEED_FIELD = 'SPEED_FIELD'
     DEFAULT_SPEED = 'DEFAULT_SPEED'
     TOLERANCE = 'TOLERANCE'
+    INCLUDE_BOUNDS = 'INCLUDE_BOUNDS'
     OUTPUT = 'OUTPUT'
+    OUTPUT_LINES = 'OUTPUT_LINES'
 
     def icon(self):
         return QIcon(os.path.join(pluginPath, 'images', 'networkanalysis.svg'))
@@ -143,14 +147,25 @@ class ServiceAreaFromPoint(QgisAlgorithm):
                                                    self.tr('Topology tolerance'),
                                                    QgsProcessingParameterNumber.Double,
                                                    0.0, False, 0, 99999999.99))
+        params.append(QgsProcessingParameterBoolean(self.INCLUDE_BOUNDS,
+                                                    self.tr('Include upper/lower bound points'),
+                                                    defaultValue=False))
 
         for p in params:
             p.setFlags(p.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
             self.addParameter(p)
 
-        self.addParameter(QgsProcessingParameterFeatureSink(self.OUTPUT,
-                                                            self.tr('Service area (boundary nodes)'),
-                                                            QgsProcessing.TypeVectorPoint))
+        lines_output = QgsProcessingParameterFeatureSink(self.OUTPUT_LINES,
+                                                         self.tr('Service area (lines)'),
+                                                         QgsProcessing.TypeVectorLine, optional=True)
+        lines_output.setCreateByDefault(True)
+        self.addParameter(lines_output)
+
+        nodes_output = QgsProcessingParameterFeatureSink(self.OUTPUT,
+                                                         self.tr('Service area (boundary nodes)'),
+                                                         QgsProcessing.TypeVectorPoint, optional=True)
+        nodes_output.setCreateByDefault(False)
+        self.addParameter(nodes_output)
 
     def name(self):
         return 'serviceareafrompoint'
@@ -173,6 +188,10 @@ class ServiceAreaFromPoint(QgisAlgorithm):
         defaultSpeed = self.parameterAsDouble(parameters, self.DEFAULT_SPEED, context)
         tolerance = self.parameterAsDouble(parameters, self.TOLERANCE, context)
 
+        include_bounds = True # default to true to maintain 3.0 API
+        if self.INCLUDE_BOUNDS in parameters:
+            include_bounds = self.parameterAsBool(parameters, self.INCLUDE_BOUNDS, context)
+
         directionField = -1
         if directionFieldName:
             directionField = network.fields().lookupField(directionFieldName)
@@ -208,18 +227,41 @@ class ServiceAreaFromPoint(QgisAlgorithm):
         idxStart = graph.findVertex(snappedPoints[0])
 
         tree, cost = QgsGraphAnalyzer.dijkstra(graph, idxStart, 0)
-        vertices = []
-        for i, v in enumerate(cost):
-            if v > travelCost and tree[i] != -1:
-                vertexId = graph.edge(tree[i]).fromVertex()
-                if cost[vertexId] <= travelCost:
-                    vertices.append(i)
+        vertices = set()
+        points = []
+        lines = []
+
+        for vertex, start_vertex_cost in enumerate(cost):
+            inbound_edge_index = tree[vertex]
+            if inbound_edge_index == -1 and vertex != idxStart:
+                # unreachable vertex
+                continue
+
+            if start_vertex_cost > travelCost:
+                # vertex is too expensive, discard
+                continue
+
+            vertices.add(vertex)
+            start_point = graph.vertex(vertex).point()
+
+            # find all edges coming from this vertex
+            for edge_id in graph.vertex(vertex).outgoingEdges():
+                edge = graph.edge(edge_id)
+                end_vertex_cost = start_vertex_cost + edge.cost(0)
+                end_point = graph.vertex(edge.toVertex()).point()
+                if end_vertex_cost <= travelCost:
+                    # end vertex is cheap enough to include
+                    vertices.add(edge.toVertex())
+                    lines.append([start_point, end_point])
+                else:
+                    # travelCost sits somewhere on this edge, interpolate position
+                    interpolated_end_point = QgsGeometryUtils.interpolatePointOnLineByValue(start_point.x(), start_point.y(), start_vertex_cost,
+                                                                                            end_point.x(), end_point.y(), end_vertex_cost, travelCost)
+                    points.append(interpolated_end_point)
+                    lines.append([start_point, interpolated_end_point])
 
-        upperBoundary = []
-        lowerBoundary = []
         for i in vertices:
-            upperBoundary.append(graph.vertex(graph.edge(tree[i]).toVertex()).point())
-            lowerBoundary.append(graph.vertex(graph.edge(tree[i]).fromVertex()).point())
+            points.append(graph.vertex(i).point())
 
         feedback.pushInfo(QCoreApplication.translate('ServiceAreaFromPoint', 'Writing results…'))
 
@@ -230,25 +272,55 @@ class ServiceAreaFromPoint(QgisAlgorithm):
         feat = QgsFeature()
         feat.setFields(fields)
 
-        geomUpper = QgsGeometry.fromMultiPointXY(upperBoundary)
-        geomLower = QgsGeometry.fromMultiPointXY(lowerBoundary)
+        (point_sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
+                                                     fields, QgsWkbTypes.MultiPoint, network.sourceCrs())
 
-        (sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
-                                               fields, QgsWkbTypes.MultiPoint, network.sourceCrs())
+        results = {}
 
-        feat.setGeometry(geomUpper)
-        feat['type'] = 'upper'
-        feat['start'] = startPoint.toString()
-        sink.addFeature(feat, QgsFeatureSink.FastInsert)
+        if point_sink is not None:
+            results[self.OUTPUT] = dest_id
+            geomPoints = QgsGeometry.fromMultiPointXY(points)
+            feat.setGeometry(geomPoints)
+            feat['type'] = 'within'
+            feat['start'] = startPoint.toString()
+            point_sink.addFeature(feat, QgsFeatureSink.FastInsert)
 
-        feat.setGeometry(geomLower)
-        feat['type'] = 'lower'
-        feat['start'] = startPoint.toString()
-        sink.addFeature(feat, QgsFeatureSink.FastInsert)
+            if include_bounds:
+                upperBoundary = []
+                lowerBoundary = []
 
-        upperBoundary.append(startPoint)
-        lowerBoundary.append(startPoint)
-        geomUpper = QgsGeometry.fromMultiPointXY(upperBoundary)
-        geomLower = QgsGeometry.fromMultiPointXY(lowerBoundary)
+                vertices = []
+                for i, v in enumerate(cost):
+                    if v > travelCost and tree[i] != -1:
+                        vertexId = graph.edge(tree[i]).fromVertex()
+                        if cost[vertexId] <= travelCost:
+                            vertices.append(i)
 
-        return {self.OUTPUT: dest_id}
+                for i in vertices:
+                    upperBoundary.append(graph.vertex(graph.edge(tree[i]).toVertex()).point())
+                    lowerBoundary.append(graph.vertex(graph.edge(tree[i]).fromVertex()).point())
+
+                geomUpper = QgsGeometry.fromMultiPointXY(upperBoundary)
+                geomLower = QgsGeometry.fromMultiPointXY(lowerBoundary)
+
+                feat.setGeometry(geomUpper)
+                feat['type'] = 'upper'
+                feat['start'] = startPoint.toString()
+                point_sink.addFeature(feat, QgsFeatureSink.FastInsert)
+
+                feat.setGeometry(geomLower)
+                feat['type'] = 'lower'
+                feat['start'] = startPoint.toString()
+                point_sink.addFeature(feat, QgsFeatureSink.FastInsert)
+
+        (line_sink, line_dest_id) = self.parameterAsSink(parameters, self.OUTPUT_LINES, context,
+                                                         fields, QgsWkbTypes.MultiLineString, network.sourceCrs())
+        if line_sink is not None:
+            results[self.OUTPUT_LINES] = line_dest_id
+            geom_lines = QgsGeometry.fromMultiPolylineXY(lines)
+            feat.setGeometry(geom_lines)
+            feat['type'] = 'lines'
+            feat['start'] = startPoint.toString()
+            line_sink.addFeature(feat, QgsFeatureSink.FastInsert)
+
+        return results
diff --git a/python/plugins/processing/tests/testdata/expected/service_area.gml b/python/plugins/processing/tests/testdata/expected/service_area.gml
index 30f4d5bf76d..7a654dd6a0a 100644
--- a/python/plugins/processing/tests/testdata/expected/service_area.gml
+++ b/python/plugins/processing/tests/testdata/expected/service_area.gml
@@ -13,13 +13,20 @@
                                                                                                     
   <gml:featureMember>
     <ogr:service_area fid="service_area.0">
+      <ogr:geometryProperty><gml:MultiPoint srsName="EPSG:32733"><gml:pointMember><gml:Point><gml:coordinates>1001909.22669746,6221447.42709256</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001952.34123543,6221487.30242746</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001953.43051079,6221448.67450212</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002032.5709223,6221550.81242615</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002969.05030799,6221676.74220288</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002829.94223561,6222321.00857048</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1003004.11226582,6222163.11646885</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002963.52384506,6222257.45803232</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1003019.60535174,6222304.92785896</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002967.72944989,6222310.07412497</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002200.16938687,6221990.04883096</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002131.79656056,6222131.1616001</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002094.78459206,6222017.32991103</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002062.09347554,6221990.71518684</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001967.62712745,6221918.33750879</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001980.19825308,6222000.74280752</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002050.07703423,6221904.36892203</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001968.4230433,6221742.68709309</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002428.50365906,6222266.9106148</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002338.00077012,6222370.25029836</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002477.4573779,6221349.03103474</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002210.48174146,6221405.95790523</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002325.82583316,6221391.57557966</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002739.97402922,6222338.5362528</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002709.22816052,6222314.30504549</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002736.08018519,6222311.40511801</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002897.23102887,6221326.98676279</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002788.41696794,6221470.76830883</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002786.2954101,6221332.83431321</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002904.54858627,6221469.12457386</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002648.98946836,6222212.9852206</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002901.19905976,6222006.39009319</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002888.74299755,6221990.93761268</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002679.03257324,6221723.1246628</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002842.33788343,6222175.19744855</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002076.31366647,6221866.90361533</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002045.66496862,6221837.84991727</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002448.62305961,6222244.85108956</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002382.21032908,6222317.66803566</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002464.2146579,6221876.53459619</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002131.61040283,6221796.62965213</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002302.22841804,6221576.64258306</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002310.58466849,6221563.42200322</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002207.17904492,6221977.8210857</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002275.1898604,6221455.19588041</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002226.82368085,6221517.62843522</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002532.83636772,6221785.38136521</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002421.46534272,6221674.17571725</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002526.28363451,6221554.70249994</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002485.75145034,6221954.55074419</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002621.6858386,6222058.82241101</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002529.45107897,6222163.92536965</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001930.78353526,6221467.36521594</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001968.37489204,6221502.13083684</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002137.81278244,6221630.62018051</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002215.13556068,6221689.25446887</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002288.4678461,6221744.85964495</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002334.20638747,6221779.49098284</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002425.63766482,6221848.74446543</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002462.62346654,6221875.38780442</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002518.06990805,6221915.34875741</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002626.85249869,6221993.7562202</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002657.33259138,6222018.20620536</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002781.74783802,6222107.45193255</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002852.18578258,6222162.74032983</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002903.48249244,6222204.64725757</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002916.58033846,6222216.16749784</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002945.17950103,6222241.31856099</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002991.11072264,6222281.72914386</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002643.23398503,6221648.43442531</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002623.85396603,6221672.14481097</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002624.53430232,6222242.61769963</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002724.17727046,6222326.95840711</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002684.54187821,6222169.9061412</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002845.50542017,6221400.90692838</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002893.44547534,6221999.89357485</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002813.21865203,6221847.09999962</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002779.14071154,6222255.13883114</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002161.08326842,6222058.23120113</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002125.77638469,6222042.5574598</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002015.92985521,6221953.13030737</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002509.88988421,6222183.56835463</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002380.76911747,6222089.85859496</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002284.1421556,6222019.72274182</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002233.59814873,6221951.11952203</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002200.84267254,6221919.96191528</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002141.64083448,6221887.81776555</gml:coordinates></gml:Point></gml:pointMember></gml:MultiPoint></ogr:geometryProperty>
+      <ogr:type>within</ogr:type>
+      <ogr:start>1002465.00896, 6221875.43249</ogr:start>
+    </ogr:service_area>
+  </gml:featureMember>
+  <gml:featureMember>
+    <ogr:service_area fid="service_area.1">
       <ogr:geometryProperty><gml:MultiPoint srsName="EPSG:32733"><gml:pointMember><gml:Point><gml:coordinates>1001891.40736133,6221430.94581986</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1003040.80096358,6222322.18412711</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002622.66996036,6221162.46807726</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001843.08473263,6221828.62873543</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002086.66939634,6222010.7240816</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001940.09434754,6221707.78585671</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001962.5674552,6222024.23591493</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002299.19357268,6222416.40706398</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002103.66905047,6221324.68154126</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002129.95849754,6222135.73878474</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002416.57059498,6221277.56159465</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002897.32222975,6222395.42838888</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002761.33635685,6222354.19324527</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002897.87933631,6221326.06027793</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1003037.55521283,6222118.73863535</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1003028.1814962,6221611.96830289</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002667.16458207,6221195.87188063</gml:coordinates></gml:Point></gml:pointMember></gml:MultiPoint></ogr:geometryProperty>
       <ogr:type>upper</ogr:type>
       <ogr:start>1002465.00896, 6221875.43249</ogr:start>
     </ogr:service_area>
   </gml:featureMember>
   <gml:featureMember>
-    <ogr:service_area fid="service_area.1">
+    <ogr:service_area fid="service_area.2">
       <ogr:geometryProperty><gml:MultiPoint srsName="EPSG:32733"><gml:pointMember><gml:Point><gml:coordinates>1001930.78353526,6221467.36521594</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002991.11072264,6222281.72914386</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002310.58466849,6221563.42200322</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002015.92985521,6221953.13030737</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002125.77638469,6222042.5574598</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002045.66496862,6221837.84991727</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002015.92985521,6221953.13030737</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002382.21032908,6222317.66803566</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002275.1898604,6221455.19588041</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002161.08326842,6222058.23120113</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002275.1898604,6221455.19588041</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002991.11072264,6222281.72914386</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002724.17727046,6222326.95840711</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002845.50542017,6221400.90692838</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002945.17950103,6222241.31856099</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002657.33259138,6222018.20620536</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002845.50542017,6221400.90692838</gml:coordinates></gml:Point></gml:pointMember></gml:MultiPoint></ogr:geometryProperty>
       <ogr:type>lower</ogr:type>
       <ogr:start>1002465.00896, 6221875.43249</ogr:start>
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer.dbf b/python/plugins/processing/tests/testdata/expected/service_area_from_layer.dbf
index 4f73679e8b1..66e7035ab09 100644
Binary files a/python/plugins/processing/tests/testdata/expected/service_area_from_layer.dbf and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer.dbf differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer.shp b/python/plugins/processing/tests/testdata/expected/service_area_from_layer.shp
index f805525f46d..26cd0dbaada 100644
Binary files a/python/plugins/processing/tests/testdata/expected/service_area_from_layer.shp and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer.shp differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer.shx b/python/plugins/processing/tests/testdata/expected/service_area_from_layer.shx
index f5dd58fb129..7e81e453fc3 100644
Binary files a/python/plugins/processing/tests/testdata/expected/service_area_from_layer.shx and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer.shx differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.dbf b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.dbf
new file mode 100644
index 00000000000..0f950b2bc56
Binary files /dev/null and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.dbf differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.prj b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.prj
new file mode 100644
index 00000000000..55aa2f4a4f7
--- /dev/null
+++ b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.prj
@@ -0,0 +1 @@
+PROJCS["WGS_1984_UTM_Zone_33S",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",15],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["Meter",1]]
\ No newline at end of file
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.qpj b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.qpj
new file mode 100644
index 00000000000..6b27046c82c
--- /dev/null
+++ b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.qpj
@@ -0,0 +1 @@
+PROJCS["WGS 84 / UTM zone 33S",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",15],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32733"]]
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.shp b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.shp
new file mode 100644
index 00000000000..bab1c262cfd
Binary files /dev/null and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.shp differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.shx b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.shx
new file mode 100644
index 00000000000..142a89f4770
Binary files /dev/null and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_lines.shx differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.dbf b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.dbf
new file mode 100644
index 00000000000..cd37a4c3528
Binary files /dev/null and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.dbf differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.prj b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.prj
new file mode 100644
index 00000000000..55aa2f4a4f7
--- /dev/null
+++ b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.prj
@@ -0,0 +1 @@
+PROJCS["WGS_1984_UTM_Zone_33S",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",15],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["Meter",1]]
\ No newline at end of file
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.qpj b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.qpj
new file mode 100644
index 00000000000..6b27046c82c
--- /dev/null
+++ b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.qpj
@@ -0,0 +1 @@
+PROJCS["WGS 84 / UTM zone 33S",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",15],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32733"]]
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.shp b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.shp
new file mode 100644
index 00000000000..8ed22c957b9
Binary files /dev/null and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.shp differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.shx b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.shx
new file mode 100644
index 00000000000..d474bc53a3d
Binary files /dev/null and b/python/plugins/processing/tests/testdata/expected/service_area_from_layer_no_bounds.shx differ
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_lines.gml b/python/plugins/processing/tests/testdata/expected/service_area_lines.gml
new file mode 100644
index 00000000000..b0a2a85f931
--- /dev/null
+++ b/python/plugins/processing/tests/testdata/expected/service_area_lines.gml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ogr:FeatureCollection
+     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+     xsi:schemaLocation="http://ogr.maptools.org/ service_area_lines.xsd"
+     xmlns:ogr="http://ogr.maptools.org/"
+     xmlns:gml="http://www.opengis.net/gml">
+  <gml:boundedBy>
+    <gml:Box>
+      <gml:coord><gml:X>1003314.095851715</gml:X><gml:Y>6222106.12154613</gml:Y></gml:coord>
+      <gml:coord><gml:X>1003967.800308236</gml:X><gml:Y>6222690.130282185</gml:Y></gml:coord>
+    </gml:Box>
+  </gml:boundedBy>
+                                                                                                 
+  <gml:featureMember>
+    <ogr:service_area_lines fid="service_area_lines.0">
+      <ogr:geometryProperty><gml:MultiLineString srsName="EPSG:32733"><gml:lineStringMember><gml:LineString><gml:coordinates>1003318.51056419,6222558.84948158 1003323.47521749,6222559.42305579</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003318.51056419,6222558.84948158 1003322.48706454,6222561.87672396</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003318.51056419,6222558.84948158 1003314.09585172,6222556.50703782</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003416.77290022,6222570.20188393 1003318.51056419,6222558.84948158</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003416.77290022,6222570.20188393 1003430.63468333,6222565.77529146</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003430.63468333,6222565.77529146 1003416.77290022,6222570.20188393</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003430.63468333,6222565.77529146 1003461.44609399,6222555.86616133</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003430.63468333,6222565.77529146 1003403.86741564,6222623.83109929</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003461.44609399,6222555.86616133 1003430.63468333,6222565.77529146</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003461.44609399,6222555.86616133 1003536.86501513,6222502.0742548</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003536.86501513,6222502.0742548 1003461.44609399,6222555.86616133</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003536.86501513,6222502.0742548 1003555.31281829,6222483.13439712</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003555.31281829,6222483.13439712 1003536.86501513,6222502.0742548</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003555.31281829,6222483.13439712 1003602.8338769,6222436.67874613</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003555.31281829,6222483.13439712 1003736.7650073,6222682.94730863</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003602.8338769,6222436.67874613 1003555.31281829,6222483.13439712</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003602.8338769,6222436.67874613 1003647.3751082,6222401.82100567</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003602.8338769,6222436.67874613 1003483.81137232,6222286.60579404</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003647.3751082,6222401.82100567 1003602.8338769,6222436.67874613</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003647.3751082,6222401.82100567 1003653.19070942,6222396.08507509</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003647.3751082,6222401.82100567 1003696.4437017,6222455.04866221</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003692.73332615,6222357.0841711 1003653.19070942,6222396.08507509</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003692.73332615,6222357.0841711 1003745.40906699,6222317.55884368</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003745.40906699,6222317.55884368 1003692.73332615,6222357.0841711</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003745.40906699,6222317.55884368 1003883.50731708,6222232.58074336</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003745.40906699,6222317.55884368 1003596.67006395,6222145.79506248</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003883.50731708,6222232.58074336 1003783.39573872,6222294.18392619</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003883.50731708,6222232.58074336 1003964.66165518,6222154.64186961</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003964.66165518,6222154.64186961 1003961.03504388,6222158.12478879</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003964.66165518,6222154.64186961 1003967.80030824,6222150.713519</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003403.86741564,6222623.83109929 1003360.47539199,6222590.79663107</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003403.86741564,6222623.83109929 1003440.28158698,6222664.4285805</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003403.86741564,6222623.83109929 1003426.7015651,6222574.30587287</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003394.25380049,6222340.63979273 1003373.83959122,6222318.82341122</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003394.25380049,6222340.63979273 1003413.414808,6222363.56471269</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003394.25380049,6222340.63979273 1003416.23997955,6222320.4085397</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003441.51556356,6222297.15044041 1003394.25380049,6222340.63979273</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003441.51556356,6222297.15044041 1003465.11136422,6222304.2892544</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003465.11136422,6222304.2892544 1003441.51556356,6222297.15044041</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003465.11136422,6222304.2892544 1003483.26027016,6222288.61783917</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003483.26027016,6222288.61783917 1003465.11136422,6222304.2892544</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003483.26027016,6222288.61783917 1003483.81137232,6222286.60579404</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003483.81137232,6222286.60579404 1003483.26027016,6222288.61783917</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003483.81137232,6222286.60579404 1003573.80211768,6222400.07321656</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003483.81137232,6222286.60579404 1003472.3070191,6222272.11630568</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003472.3070191,6222272.11630568 1003483.81137232,6222286.60579404</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003472.3070191,6222272.11630568 1003406.90500878,6222189.64158806</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003472.3070191,6222272.11630568 1003560.92830067,6222182.0996092</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003406.90500878,6222189.64158806 1003419.99086281,6222206.14340675</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003406.90500878,6222189.64158806 1003422.43926795,6222175.42060347</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003406.90500878,6222189.64158806 1003392.71936137,6222205.2080979</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003596.67006395,6222145.79506248 1003559.85075068,6222183.1941261</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003596.67006395,6222145.79506248 1003631.02591393,6222185.46919353</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003596.67006395,6222145.79506248 1003562.31361325,6222106.12154613</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003696.4437017,6222455.04866221 1003647.3751082,6222401.82100567</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003696.4437017,6222455.04866221 1003745.10253898,6222507.54062578</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003696.4437017,6222455.04866221 1003730.70401858,6222428.97077802</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003745.10253898,6222507.54062578 1003696.4437017,6222455.04866221</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003745.10253898,6222507.54062578 1003852.72754463,6222623.65770678</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003745.10253898,6222507.54062578 1003776.08011855,6222475.56747746</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003852.72754463,6222623.65770678 1003791.11900533,6222557.18798903</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003852.72754463,6222623.65770678 1003914.33323318,6222690.13028219</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003852.72754463,6222623.65770678 1003784.38305434,6222683.17969849</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003852.72754463,6222623.65770678 1003921.7483249,6222564.92109632</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003776.08011855,6222475.56747746 1003745.10253898,6222507.54062578</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003776.08011855,6222475.56747746 1003730.70401858,6222428.97077802</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003730.70401858,6222428.97077802 1003776.08011855,6222475.56747746</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003730.70401858,6222428.97077802 1003696.4437017,6222455.04866221</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003653.19070942,6222396.08507509 1003647.3751082,6222401.82100567</gml:coordinates></gml:LineString></gml:lineStringMember><gml:lineStringMember><gml:LineString><gml:coordinates>1003653.19070942,6222396.08507509 1003692.73332615,6222357.0841711</gml:coordinates></gml:LineString></gml:lineStringMember></gml:MultiLineString></ogr:geometryProperty>
+      <ogr:type>lines</ogr:type>
+      <ogr:start>1003654.80653, 6222397.72334</ogr:start>
+    </ogr:service_area_lines>
+  </gml:featureMember>
+</ogr:FeatureCollection>
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_lines.xsd b/python/plugins/processing/tests/testdata/expected/service_area_lines.xsd
new file mode 100644
index 00000000000..2ad1a84e8dd
--- /dev/null
+++ b/python/plugins/processing/tests/testdata/expected/service_area_lines.xsd
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema targetNamespace="http://ogr.maptools.org/" xmlns:ogr="http://ogr.maptools.org/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="1.0">
+<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
+<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
+<xs:complexType name="FeatureCollectionType">
+  <xs:complexContent>
+    <xs:extension base="gml:AbstractFeatureCollectionType">
+      <xs:attribute name="lockId" type="xs:string" use="optional"/>
+      <xs:attribute name="scope" type="xs:string" use="optional"/>
+    </xs:extension>
+  </xs:complexContent>
+</xs:complexType>
+<xs:element name="service_area_lines" type="ogr:service_area_lines_Type" substitutionGroup="gml:_Feature"/>
+<xs:complexType name="service_area_lines_Type">
+  <xs:complexContent>
+    <xs:extension base="gml:AbstractFeatureType">
+      <xs:sequence>
+        <xs:element name="geometryProperty" type="gml:MultiLineStringPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
+        <xs:element name="type" nillable="true" minOccurs="0" maxOccurs="1">
+          <xs:simpleType>
+            <xs:restriction base="xs:string">
+              <xs:maxLength value="254"/>
+            </xs:restriction>
+          </xs:simpleType>
+        </xs:element>
+        <xs:element name="start" nillable="true" minOccurs="0" maxOccurs="1">
+          <xs:simpleType>
+            <xs:restriction base="xs:string">
+              <xs:maxLength value="254"/>
+            </xs:restriction>
+          </xs:simpleType>
+        </xs:element>
+      </xs:sequence>
+    </xs:extension>
+  </xs:complexContent>
+</xs:complexType>
+</xs:schema>
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_no_bounds.gml b/python/plugins/processing/tests/testdata/expected/service_area_no_bounds.gml
new file mode 100644
index 00000000000..b088efb9cd6
--- /dev/null
+++ b/python/plugins/processing/tests/testdata/expected/service_area_no_bounds.gml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ogr:FeatureCollection
+     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+     xsi:schemaLocation="http://ogr.maptools.org/ service_area_no_bounds.xsd"
+     xmlns:ogr="http://ogr.maptools.org/"
+     xmlns:gml="http://www.opengis.net/gml">
+  <gml:boundedBy>
+    <gml:Box>
+      <gml:coord><gml:X>1001909.22669746</gml:X><gml:Y>6221326.986762793</gml:Y></gml:coord>
+      <gml:coord><gml:X>1003019.60535174</gml:X><gml:Y>6222370.250298364</gml:Y></gml:coord>
+    </gml:Box>
+  </gml:boundedBy>
+                                                                                                  
+  <gml:featureMember>
+    <ogr:service_area_no_bounds fid="service_area_no_bounds.0">
+      <ogr:geometryProperty><gml:MultiPoint srsName="EPSG:32733"><gml:pointMember><gml:Point><gml:coordinates>1001909.22669746,6221447.42709256</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001952.34123543,6221487.30242746</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001953.43051079,6221448.67450212</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002032.5709223,6221550.81242615</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002969.05030799,6221676.74220288</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002829.94223561,6222321.00857048</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1003004.11226582,6222163.11646885</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002963.52384506,6222257.45803232</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1003019.60535174,6222304.92785896</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002967.72944989,6222310.07412497</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002200.16938687,6221990.04883096</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002131.79656056,6222131.1616001</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002094.78459206,6222017.32991103</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002062.09347554,6221990.71518684</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001967.62712745,6221918.33750879</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001980.19825308,6222000.74280752</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002050.07703423,6221904.36892203</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001968.4230433,6221742.68709309</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002428.50365906,6222266.9106148</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002338.00077012,6222370.25029836</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002477.4573779,6221349.03103474</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002210.48174146,6221405.95790523</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002325.82583316,6221391.57557966</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002739.97402922,6222338.5362528</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002709.22816052,6222314.30504549</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002736.08018519,6222311.40511801</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002897.23102887,6221326.98676279</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002788.41696794,6221470.76830883</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002786.2954101,6221332.83431321</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002904.54858627,6221469.12457386</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002648.98946836,6222212.9852206</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002901.19905976,6222006.39009319</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002888.74299755,6221990.93761268</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002679.03257324,6221723.1246628</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002842.33788343,6222175.19744855</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002076.31366647,6221866.90361533</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002045.66496862,6221837.84991727</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002448.62305961,6222244.85108956</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002382.21032908,6222317.66803566</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002464.2146579,6221876.53459619</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002131.61040283,6221796.62965213</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002302.22841804,6221576.64258306</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002310.58466849,6221563.42200322</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002207.17904492,6221977.8210857</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002275.1898604,6221455.19588041</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002226.82368085,6221517.62843522</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002532.83636772,6221785.38136521</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002421.46534272,6221674.17571725</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002526.28363451,6221554.70249994</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002485.75145034,6221954.55074419</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002621.6858386,6222058.82241101</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002529.45107897,6222163.92536965</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001930.78353526,6221467.36521594</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1001968.37489204,6221502.13083684</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002137.81278244,6221630.62018051</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002215.13556068,6221689.25446887</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002288.4678461,6221744.85964495</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002334.20638747,6221779.49098284</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002425.63766482,6221848.74446543</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002462.62346654,6221875.38780442</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002518.06990805,6221915.34875741</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002626.85249869,6221993.7562202</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002657.33259138,6222018.20620536</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002781.74783802,6222107.45193255</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002852.18578258,6222162.74032983</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002903.48249244,6222204.64725757</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002916.58033846,6222216.16749784</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002945.17950103,6222241.31856099</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002991.11072264,6222281.72914386</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002643.23398503,6221648.43442531</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002623.85396603,6221672.14481097</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002624.53430232,6222242.61769963</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002724.17727046,6222326.95840711</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002684.54187821,6222169.9061412</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002845.50542017,6221400.90692838</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002893.44547534,6221999.89357485</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002813.21865203,6221847.09999962</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002779.14071154,6222255.13883114</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002161.08326842,6222058.23120113</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002125.77638469,6222042.5574598</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002015.92985521,6221953.13030737</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002509.88988421,6222183.56835463</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002380.76911747,6222089.85859496</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002284.1421556,6222019.72274182</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002233.59814873,6221951.11952203</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002200.84267254,6221919.96191528</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1002141.64083448,6221887.81776555</gml:coordinates></gml:Point></gml:pointMember></gml:MultiPoint></ogr:geometryProperty>
+      <ogr:type>within</ogr:type>
+      <ogr:start>1002465.00896, 6221875.43249</ogr:start>
+    </ogr:service_area_no_bounds>
+  </gml:featureMember>
+</ogr:FeatureCollection>
diff --git a/python/plugins/processing/tests/testdata/expected/service_area_no_bounds.xsd b/python/plugins/processing/tests/testdata/expected/service_area_no_bounds.xsd
new file mode 100644
index 00000000000..dd9786c62df
--- /dev/null
+++ b/python/plugins/processing/tests/testdata/expected/service_area_no_bounds.xsd
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema targetNamespace="http://ogr.maptools.org/" xmlns:ogr="http://ogr.maptools.org/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="1.0">
+<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
+<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
+<xs:complexType name="FeatureCollectionType">
+  <xs:complexContent>
+    <xs:extension base="gml:AbstractFeatureCollectionType">
+      <xs:attribute name="lockId" type="xs:string" use="optional"/>
+      <xs:attribute name="scope" type="xs:string" use="optional"/>
+    </xs:extension>
+  </xs:complexContent>
+</xs:complexType>
+<xs:element name="service_area_no_bounds" type="ogr:service_area_no_bounds_Type" substitutionGroup="gml:_Feature"/>
+<xs:complexType name="service_area_no_bounds_Type">
+  <xs:complexContent>
+    <xs:extension base="gml:AbstractFeatureType">
+      <xs:sequence>
+        <xs:element name="geometryProperty" type="gml:MultiPointPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
+        <xs:element name="type" nillable="true" minOccurs="0" maxOccurs="1">
+          <xs:simpleType>
+            <xs:restriction base="xs:string">
+              <xs:maxLength value="254"/>
+            </xs:restriction>
+          </xs:simpleType>
+        </xs:element>
+        <xs:element name="start" nillable="true" minOccurs="0" maxOccurs="1">
+          <xs:simpleType>
+            <xs:restriction base="xs:string">
+              <xs:maxLength value="254"/>
+            </xs:restriction>
+          </xs:simpleType>
+        </xs:element>
+      </xs:sequence>
+    </xs:extension>
+  </xs:complexContent>
+</xs:complexType>
+</xs:schema>
diff --git a/python/plugins/processing/tests/testdata/qgis_algorithm_tests.yaml b/python/plugins/processing/tests/testdata/qgis_algorithm_tests.yaml
index 40b7d615dff..73673555733 100644
--- a/python/plugins/processing/tests/testdata/qgis_algorithm_tests.yaml
+++ b/python/plugins/processing/tests/testdata/qgis_algorithm_tests.yaml
@@ -3049,6 +3049,66 @@ tests:
             start: skip
             end: skip
 
+  - algorithm: qgis:serviceareafrompoint
+    name: Service area (from point, shortest, no bounds)
+    params:
+      DEFAULT_DIRECTION: 2
+      DEFAULT_SPEED: 5.0
+      INCLUDE_BOUNDS: false
+      INPUT:
+        name: roads.gml
+        type: vector
+      START_POINT: 1002465.0089601517,6221875.432489508
+      STRATEGY: 0
+      TOLERANCE: 0.0
+      TRAVEL_COST: 700.0
+      VALUE_BACKWARD: ''
+      VALUE_BOTH: ''
+      VALUE_FORWARD: ''
+    results:
+      OUTPUT:
+        name: expected/service_area_no_bounds.gml
+        type: vector
+        compare:
+          ignore_crs_check: true
+          geometry:
+            precision: 2
+          fields:
+            cost:
+              precision: 2
+            start: skip
+            end: skip
+
+  - algorithm: qgis:serviceareafrompoint
+    name: Service area from point, output lines
+    params:
+      DEFAULT_DIRECTION: 2
+      DEFAULT_SPEED: 5.0
+      INCLUDE_BOUNDS: false
+      INPUT:
+        name: roads.gml
+        type: vector
+      START_POINT: 1003654.8065293541,6222397.723338357 [EPSG:32733]
+      STRATEGY: 0
+      TOLERANCE: 0.0
+      TRAVEL_COST: 400.0
+      VALUE_BACKWARD: ''
+      VALUE_BOTH: ''
+      VALUE_FORWARD: ''
+    results:
+      OUTPUT_LINES:
+        name: expected/service_area_lines.gml
+        type: vector
+        compare:
+          ignore_crs_check: true
+          geometry:
+            precision: 2
+          fields:
+            cost:
+              precision: 2
+            start: skip
+            end: skip
+
   - algorithm: qgis:serviceareafromlayer
     name: Service area from layer
     params:
@@ -3083,6 +3143,75 @@ tests:
         - d
         - type
 
+  - algorithm: qgis:serviceareafromlayer
+    name: Service area from layer no bounds
+    params:
+      DEFAULT_DIRECTION: 2
+      DEFAULT_SPEED: 5.0
+      INCLUDE_BOUNDS: false
+      INPUT:
+        name: roads.gml
+        type: vector
+      START_POINTS:
+        name: custom/route_points.gml
+        type: vector
+      STRATEGY: 0
+      TOLERANCE: 0.0
+      TRAVEL_COST: 700.0
+      VALUE_BACKWARD: ''
+      VALUE_BOTH: ''
+      VALUE_FORWARD: ''
+    results:
+      OUTPUT:
+        name: expected/service_area_from_layer_no_bounds.shp
+        type: vector
+        compare:
+          ignore_crs_check: true
+          geometry:
+            precision: 2
+          fields:
+            cost:
+              precision: 2
+            start: skip
+            end: skip
+        pk:
+        - d
+        - type
+
+  - algorithm: qgis:serviceareafromlayer
+    name: Service area from layer (lines)
+    params:
+      DEFAULT_DIRECTION: 2
+      DEFAULT_SPEED: 5.0
+      INCLUDE_BOUNDS: false
+      INPUT:
+        name: roads.gml
+        type: vector
+      START_POINTS:
+        name: custom/route_points.gml
+        type: vector
+      STRATEGY: 0
+      TOLERANCE: 0.0
+      TRAVEL_COST: 500.0
+      VALUE_BACKWARD: ''
+      VALUE_BOTH: ''
+      VALUE_FORWARD: ''
+    results:
+      OUTPUT_LINES:
+        name: expected/service_area_from_layer_lines.shp
+        type: vector
+        compare:
+          ignore_crs_check: true
+          geometry:
+            precision: 2
+          fields:
+            cost:
+              precision: 2
+            start: skip
+            end: skip
+        pk:
+        - d
+        - type
 
   - algorithm: qgis:createattributeindex
     name: Create attribute index
diff --git a/src/analysis/network/qgsgraphanalyzer.h b/src/analysis/network/qgsgraphanalyzer.h
index 273b5c2203d..06a4fb656fb 100644
--- a/src/analysis/network/qgsgraphanalyzer.h
+++ b/src/analysis/network/qgsgraphanalyzer.h
@@ -38,7 +38,8 @@ class ANALYSIS_EXPORT QgsGraphAnalyzer
      * \param source source graph
      * \param startVertexIdx index of the start vertex
      * \param criterionNum index of the optimization strategy
-     * \param resultTree array that represents shortest path tree. resultTree[ vertexIndex ] == inboundingArcIndex if vertex reachable, otherwise resultTree[ vertexIndex ] == -1
+     * \param resultTree array that represents shortest path tree. resultTree[ vertexIndex ] == inboundingArcIndex if vertex reachable, otherwise resultTree[ vertexIndex ] == -1.
+     * Note that the startVertexIdx will also have a value of -1 and may need special handling by callers.
      * \param resultCost array of the paths costs
      */
     static void SIP_PYALTERNATIVETYPE( SIP_PYLIST ) dijkstra( const QgsGraph *source, int startVertexIdx, int criterionNum, QVector<int> *resultTree = nullptr, QVector<double> *resultCost = nullptr );