Examples of org.movsim.simulator.roadnetwork.RoadSegment

Package org.movsim.simulator.roadnetwork

Examples of org.movsim.simulator.roadnetwork.RoadSegment

org.movsim.simulator.roadnetwork.RoadSegment

A RoadSegment is a unidirectional stretch of road that contains a number of lane segments. A bidirectional stretch of road may be created by combining two road segments running in opposite directions.

RoadSegments may be combined to form a road network.

A RoadSegment is normally connected to two other road segments: a source road from which vehicles enter the road segment and a sink road to which vehicles exit. RoadSegments at the edge of the network will normally be connected to only one other road segment: traffic inflow and outflow will be controlled directly by source and sink objects.

RoadSegments are connected to each other on a lane-wise basis: each sink (outgoing) lane of a road segment may be connected to a source (incoming) lane of another road segment. This allows the forking and merging of road segments, the creation of on-ramps and off-ramps. By connecting the lanes of a number of road segments in this way, complex junctions and interchanges may be created.

A RoadSegment is a logical entity, not a physical one. That is a RoadSegment does not know if it is straight or winding, it just knows about the vehicles it contains and what it is connected to. A vehicle's coordinates on a RoadsSegment are given by the vehicle's position relative to the start of the RoadSegment and the vehicle's lane.

A RoadSegment has laneCount lanes. Lanes within a RoadSegment are represented by the LaneSegment class.

The mapping from a position on a RoadSegment to coordinates in physical space is determined by a RoadSegment's RoadMapping. Although the RoadMapping is primarily used by software that draws the road network and the vehicles upon it, elements of the RoadMapping may influence vehicle behavior, in particular a road's curvature and its gradient.


    private static void handleJunctions(OpenDRIVE openDriveNetwork, RoadNetwork roadNetwork) {
        // iterate through all the junctions
        for (Junction junction : openDriveNetwork.getJunction()) {
            for (Connection connection : junction.getConnection()) {
                RoadSegment incomingRoadSegment = Preconditions.checkNotNull(
                        roadNetwork.findByUserId(connection.getIncomingRoad()), "Cannot find incoming road: "
                                + connection.getIncomingRoad());
                RoadSegment connenctingRoadSegment = Preconditions.checkNotNull(
                        roadNetwork.findByUserId(connection.getConnectingRoad()), "Cannot find connecting road: "
                                + connection.getConnectingRoad());
                Road road = findByUserId(openDriveNetwork.getRoad(), connection.getConnectingRoad());
                if (roadPredecessorIsJunction(junction, road)) {
                    for (final LaneLink laneLink : connection.getLaneLink()) {

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            LOG.info("edge weight={}", graph.getEdgeWeight(roadSegment));
            graph.setEdgeWeight(roadSegment, roadSegment.roadLength());
            // add vertex to successor links AND to predecessor links of successors
            for (LaneSegment laneSegment : roadSegment.laneSegments()) {
                if (laneSegment.sinkLaneSegment() != null) {
                    RoadSegment successor = laneSegment.sinkLaneSegment().roadSegment();
                    successor.setNode(NodeType.ORIGIN, toVertex);
                    for (LaneSegment laneSegmentSuccessor : successor.laneSegments()) {
                        if (laneSegmentSuccessor.sourceLaneSegment() != null) {
                            RoadSegment predecessor = laneSegmentSuccessor.sourceLaneSegment().roadSegment();
                            predecessor.setNode(NodeType.DESTINATION, toVertex);
                        }
                    }
                }
            }
        }

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    private void createPredefinedRoutes(Routes routesInput) {
        for (org.movsim.autogen.Route routeInput : routesInput.getRoute()) {
            Route route = new Route(routeInput.getLabel());
            for (org.movsim.autogen.Road roadInput : routeInput.getRoad()) {
                RoadSegment roadSegment = roadNetwork.findByUserId(roadInput.getId());
                Preconditions.checkNotNull(roadSegment, "cannot create route \"" + route.getName()
                        + "\" with undefinied road=" + roadInput.getId());
                route.add(roadSegment);
            }
            Route replaced = predefinedRoutes.put(route.getName(), route);

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        }
        Preconditions.checkArgument(startRoadId != null && !startRoadId.isEmpty());
        Preconditions.checkArgument(destinationRoadId != null && !destinationRoadId.isEmpty());


        Route route = new Route(createRouteName(startRoadId, destinationRoadId));
        RoadSegment startRoadSegment = roadNetwork.findByUserId(startRoadId);
        route.add(startRoadSegment);
        RoadSegment endRoadSegment = roadNetwork.findByUserId(destinationRoadId);


        LOG.info("Shortest path from roadSegment={} to={}", startRoadId, destinationRoadId);
        LOG.info("From node={} to node={}", startRoadSegment.getNode(NodeType.DESTINATION),
                endRoadSegment.getNode(NodeType.DESTINATION));


        List<RoadSegment> path = DijkstraShortestPath.findPathBetween(graph,
                startRoadSegment.getNode(NodeType.DESTINATION), endRoadSegment.getNode(NodeType.DESTINATION));
        if (path == null) {
            throw new IllegalStateException("cannot find route from startRoadId=" + startRoadId
                    + " to destinationRoadId=" + destinationRoadId);
        }

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Related Classes of org.movsim.simulator.roadnetwork.RoadSegment

org.movsim.input.network.OpenDriveHandlerJaxb

org.movsim.roadmappings.RoadMapping

org.movsim.simulator.roadnetwork.routing.NetworkGraph

org.movsim.simulator.roadnetwork.routing.Routing

org.movsim.simulator.roadnetwork.vehicles.lanechange.MOBILTest

org.movsim.simulator.Simulator

org.movsim.simulator.trafficlights.TrafficLightLocation

org.movsim.simulator.vehicles.Vehicle

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