Package org.opentrafficsim.road.network.lane

Class Lane

  • All Implemented Interfaces:
    Serializable, Locatable, EventProducerInterface, Identifiable, Drawable
    Direct Known Subclasses:
    NoTrafficLane
    public class Lane
extends CrossSectionElement
implements Serializable
    The Lane is the CrossSectionElement of a CrossSectionLink on which GTUs can drive. The Lane stores several important properties, such as the successor lane(s), predecessor lane(s), and adjacent lane(s), all separated per GTU type. It can, for instance, be that a truck is not allowed to move into an adjacent lane, while a car is allowed to do so. Furthermore, the lane contains sensors that can be triggered by passing GTUs. The Lane class also contains methods to determine to trigger the sensors at exactly calculated and scheduled times, given the movement of the GTUs.
    Finally, the Lane stores the GTUs on the lane, and contains several access methods to determine successor and predecessor GTUs, as well as methods to add a GTU to a lane (either at the start or in the middle when changing lanes), and remove a GTU from the lane (either at the end, or in the middle when changing onto another lane).

    Copyright (c) 2013-2020 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
    BSD-style license. See OpenTrafficSim License.

    $LastChangedDate: 2015-09-24 14:17:07 +0200 (Thu, 24 Sep 2015) $, @version $Revision: 1407 $, by $Author: averbraeck $, initial version Aug 19, 2014

    Author:
    Alexander Verbraeck, Peter Knoppers
    See Also:
    Serialized Form

    • Field Detail

      • GTU_ADD_EVENT

        public static final TimedEventType GTU_ADD_EVENT
        The timed event type for pub/sub indicating the addition of a GTU to the lane.
        Payload: Object[] {String gtuId, LaneBasedGTU gtu, int count_after_addition}

      • GTU_REMOVE_EVENT

        public static final TimedEventType GTU_REMOVE_EVENT
        The timed event type for pub/sub indicating the removal of a GTU from the lane.
        Payload: Object[] {String gtuId, LaneBasedGTU gtu, int count_after_removal, Length position}

      • SENSOR_ADD_EVENT

        public static final TimedEventType SENSOR_ADD_EVENT
        The timed event type for pub/sub indicating the addition of a Sensor to the lane.
        Payload: Object[] {String sensorId, Sensor sensor}

      • SENSOR_REMOVE_EVENT

        public static final TimedEventType SENSOR_REMOVE_EVENT
        The timed event type for pub/sub indicating the removal of a Sensor from the lane.
        Payload: Object[] {String sensorId, Sensor sensor}

      • OBJECT_ADD_EVENT

        public static final TimedEventType OBJECT_ADD_EVENT
        The event type for pub/sub indicating the addition of a LaneBasedObject to the lane.
        Payload: Object[] {LaneBasedObject laneBasedObject}

      • OBJECT_REMOVE_EVENT

        public static final TimedEventType OBJECT_REMOVE_EVENT
        The event type for pub/sub indicating the removal of a LaneBasedObject from the lane.
        Payload: Object[] {LaneBasedObject laneBasedObject}

      • MARGIN

        public static final Length MARGIN
        Lateral alignment margin for longitudinally connected Lanes.

    • Constructor Detail

      • Lane

        public Lane​(CrossSectionLink parentLink,
            String id,
            Length lateralOffsetAtStart,
            Length lateralOffsetAtEnd,
            Length beginWidth,
            Length endWidth,
            LaneType laneType,
            Map<GTUType,​Speed> speedLimitMap,
            boolean fixGradualLateralOffset)
     throws OTSGeometryException,
            NetworkException
        Construct a new Lane.
        Parameters:
        parentLink - CrossSectionLink; the link to which the new Lane will belong (must be constructed first)
        id - String; the id of this lane within the link; should be unique within the link.
        lateralOffsetAtStart - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link at the start of the parent Link
        lateralOffsetAtEnd - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link at the end of the parent Link
        beginWidth - Length; start width, positioned symmetrically around the design line
        endWidth - Length; end width, positioned symmetrically around the design line
        laneType - LaneType; the type of lane to deduce compatibility with GTU types
        speedLimitMap - Map<GTUType, Speed>; speed limit on this lane, specified per GTU Type
        fixGradualLateralOffset - boolean; true if gradualLateralOffset needs to be fixed
        Throws:
        OTSGeometryException - when creation of the center line or contour geometry fails
        NetworkException - when id equal to null or not unique

      • Lane

        public Lane​(CrossSectionLink parentLink,
            String id,
            Length lateralOffsetAtStart,
            Length lateralOffsetAtEnd,
            Length beginWidth,
            Length endWidth,
            LaneType laneType,
            Map<GTUType,​Speed> speedLimitMap)
     throws OTSGeometryException,
            NetworkException
        Construct a new Lane.
        Parameters:
        parentLink - CrossSectionLink; the link to which the new Lane will belong (must be constructed first)
        id - String; the id of this lane within the link; should be unique within the link.
        lateralOffsetAtStart - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link at the start of the parent Link
        lateralOffsetAtEnd - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link at the end of the parent Link
        beginWidth - Length; start width, positioned symmetrically around the design line
        endWidth - Length; end width, positioned symmetrically around the design line
        laneType - LaneType; the type of lane to deduce compatibility with GTU types
        speedLimitMap - Map<GTUType, Speed>; speed limit on this lane, specified per GTU Type
        Throws:
        OTSGeometryException - when creation of the center line or contour geometry fails
        NetworkException - when id equal to null or not unique

      • Lane

        public Lane​(CrossSectionLink parentLink,
            String id,
            Length lateralOffsetAtStart,
            Length lateralOffsetAtEnd,
            Length beginWidth,
            Length endWidth,
            LaneType laneType,
            Speed speedLimit,
            boolean fixGradualLateralOffset)
     throws OTSGeometryException,
            NetworkException
        Construct a new Lane.
        Parameters:
        parentLink - CrossSectionLink; the link to which the element will belong (must be constructed first)
        id - String; the id of this lane within the link; should be unique within the link.
        lateralOffsetAtStart - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link at the start of the parent Link
        lateralOffsetAtEnd - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link at the end of the parent Link
        beginWidth - Length; start width, positioned symmetrically around the design line
        endWidth - Length; end width, positioned symmetrically around the design line
        laneType - LaneType; the type of lane to deduce compatibility with GTU types
        speedLimit - Speed; speed limit on this lane
        fixGradualLateralOffset - boolean; true if gradualLateralOffset needs to be fixed
        Throws:
        OTSGeometryException - when creation of the center line or contour geometry fails
        NetworkException - when id equal to null or not unique

      • Lane

        public Lane​(CrossSectionLink parentLink,
            String id,
            Length lateralOffsetAtStart,
            Length lateralOffsetAtEnd,
            Length beginWidth,
            Length endWidth,
            LaneType laneType,
            Speed speedLimit)
     throws OTSGeometryException,
            NetworkException
        Construct a new Lane.
        Parameters:
        parentLink - CrossSectionLink; the link to which the element will belong (must be constructed first)
        id - String; the id of this lane within the link; should be unique within the link.
        lateralOffsetAtStart - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link at the start of the parent Link
        lateralOffsetAtEnd - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link at the end of the parent Link
        beginWidth - Length; start width, positioned symmetrically around the design line
        endWidth - Length; end width, positioned symmetrically around the design line
        laneType - LaneType; the type of lane to deduce compatibility with GTU types
        speedLimit - Speed; speed limit on this lane
        Throws:
        OTSGeometryException - when creation of the center line or contour geometry fails
        NetworkException - when id equal to null or not unique

      • Lane

        public Lane​(CrossSectionLink parentLink,
            String id,
            Length lateralOffset,
            Length width,
            LaneType laneType,
            Map<GTUType,​Speed> speedLimitMap)
     throws OTSGeometryException,
            NetworkException
        Construct a new Lane.
        Parameters:
        parentLink - CrossSectionLink; the link to which the element will belong (must be constructed first)
        id - String; the id of this lane within the link; should be unique within the link.
        lateralOffset - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link
        width - Length; width, positioned symmetrically around the design line
        laneType - LaneType; type of lane to deduce compatibility with GTU types
        speedLimitMap - Map<GTUType, Speed>; the speed limit on this lane, specified per GTU Type
        Throws:
        OTSGeometryException - when creation of the center line or contour geometry fails
        NetworkException - when id equal to null or not unique

      • Lane

        public Lane​(CrossSectionLink parentLink,
            String id,
            Length lateralOffset,
            Length width,
            LaneType laneType,
            Speed speedLimit)
     throws OTSGeometryException,
            NetworkException
        Construct a new Lane.
        Parameters:
        parentLink - CrossSectionLink; the link to which the element belongs (must be constructed first)
        id - String; the id of this lane within the link; should be unique within the link
        lateralOffset - Length; the lateral offset of the design line of the new CrossSectionLink with respect to the design line of the parent Link
        width - Length; width, positioned symmetrically around the design line
        laneType - LaneType; the type of lane to deduce compatibility with GTU types
        speedLimit - Speed; the speed limit on this lane
        Throws:
        OTSGeometryException - when creation of the center line or contour geometry fails
        NetworkException - when id equal to null or not unique

      • Lane

        public Lane​(CrossSectionLink parentLink,
            String id,
            List<CrossSectionSlice> crossSectionSlices,
            LaneType laneType,
            Map<GTUType,​Speed> speedLimitMap)
     throws OTSGeometryException,
            NetworkException
        Construct a new Lane.
        Parameters:
        parentLink - CrossSectionLink; the link to which the element belongs (must be constructed first)
        id - String; the id of this lane within the link; should be unique within the link.
        crossSectionSlices - List<CrossSectionSlice>; the offsets and widths at positions along the line, relative to the design line of the parent link. If there is just one with and offset, there should just be one element in the list with Length = 0. If there are more slices, the last one should be at the length of the design line. If not, a NetworkException is thrown.
        laneType - LaneType; the type of lane to deduce compatibility with GTU types
        speedLimitMap - Map<GTUType, Speed>; the speed limit on this lane, specified per GTU Type
        Throws:
        OTSGeometryException - when creation of the center line or contour geometry fails
        NetworkException - when id equal to null or not unique

      • Lane

        public Lane​(CrossSectionLink parentLink,
            String id,
            List<CrossSectionSlice> crossSectionSlices,
            LaneType laneType,
            Speed speedLimit)
     throws OTSGeometryException,
            NetworkException
        Construct a new Lane.
        Parameters:
        parentLink - CrossSectionLink; the link to which the element belongs (must be constructed first)
        id - String; the id of this lane within the link; should be unique within the link.
        crossSectionSlices - List<CrossSectionSlice>; the offsets and widths at positions along the line, relative to the design line of the parent link. If there is just one with and offset, there should just be one element in the list with Length = 0. If there are more slices, the last one should be at the length of the design line. If not, a NetworkException is thrown.
        laneType - LaneType; the type of lane to deduce compatibility with GTU types
        speedLimit - Speed; the speed limit on this lane
        Throws:
        OTSGeometryException - when creation of the center line or contour geometry fails
        NetworkException - when id equal to null or not unique

      • Lane

        protected Lane​(CrossSectionLink newParentLink,
               Lane cse)
        throws NetworkException
        Clone a Lane for a new network.
        Parameters:
        newParentLink - CrossSectionLink; the new link to which the clone belongs
        cse - Lane; the element to clone from
        Throws:
        NetworkException - if link already exists in the network, if name of the link is not unique, or if the start node or the end node of the link are not registered in the network.

    • Method Detail

      • addSensor

        public final void addSensor​(SingleSensor sensor)
                     throws NetworkException
        Insert a sensor at the right place in the sensor list of this Lane.
        Parameters:
        sensor - SingleSensor; the sensor to add
        Throws:
        NetworkException - when the position of the sensor is beyond (or before) the range of this Lane

      • removeSensor

        public final void removeSensor​(SingleSensor sensor)
                        throws NetworkException
        Remove a sensor from the sensor list of this Lane.
        Parameters:
        sensor - SingleSensor; the sensor to remove.
        Throws:
        NetworkException - when the sensor was not found on this Lane

      • getSensors

        public final List<SingleSensor> getSensors​(Length minimumPosition,
                                           Length maximumPosition,
                                           GTUType gtuType,
                                           GTUDirectionality direction)
        Retrieve the list of Sensors of this Lane in the specified distance range for the given GTUType. The resulting list is a defensive copy.
        Parameters:
        minimumPosition - Length; the minimum distance on the Lane (inclusive)
        maximumPosition - Length; the maximum distance on the Lane (inclusive)
        gtuType - GTUType; the GTU type to provide the sensors for
        direction - GTUDirectionality; direction of movement of the GTU
        Returns:
        List<Sensor>; list of the sensor in the specified range. This is a defensive copy.

      • getSensors

        public final List<SingleSensor> getSensors​(GTUType gtuType,
                                           GTUDirectionality direction)
        Retrieve the list of Sensors of this Lane that are triggered by the given GTUType. The resulting list is a defensive copy.
        Parameters:
        gtuType - GTUType; the GTU type to provide the sensors for
        direction - GTUDirectionality; direction of movement of the GTU
        Returns:
        List<Sensor>; list of the sensors, in ascending order for the location on the Lane

      • getSensors

        public final List<SingleSensor> getSensors()
        Retrieve the list of all Sensors of this Lane. The resulting list is a defensive copy.
        Returns:
        List<Sensor>; list of the sensors, in ascending order for the location on the Lane

      • getSensorMap

        public final SortedMap<Double,​List<SingleSensor>> getSensorMap​(GTUType gtuType,
                                                                     GTUDirectionality direction)
        Retrieve the list of Sensors of this Lane for the given GTUType. The resulting Map is a defensive copy.
        Parameters:
        gtuType - GTUType; the GTU type to provide the sensors for
        direction - GTUDirectionality; direction of movement of the GTU
        Returns:
        SortedMap<Double, List<Sensor>>; all sensors on this lane for the given GTUType as a map per distance

      • scheduleSensorTriggers

        public final void scheduleSensorTriggers​(LaneBasedGTU gtu,
                                         double referenceStartSI,
                                         double referenceMoveSI)
                                  throws NetworkException,
                                         SimRuntimeException
        Schedule triggering of the sensors for a certain time step; from now until the nextEvaluationTime of the GTU.
        Parameters:
        gtu - LaneBasedGTU; the lane based GTU for which to schedule triggering of the sensors.
        referenceStartSI - double; the SI distance of the GTU reference point on the lane at the current time
        referenceMoveSI - double; the SI distance traveled in the next time step.
        Throws:
        NetworkException - when GTU not on this lane.
        SimRuntimeException - when method cannot be scheduled.

      • addLaneBasedObject

        public final void addLaneBasedObject​(LaneBasedObject laneBasedObject)
                              throws NetworkException
        Insert a laneBasedObject at the right place in the laneBasedObject list of this Lane. Register it in the network WITH the Lane id.
        Parameters:
        laneBasedObject - LaneBasedObject; the laneBasedObject to add
        Throws:
        NetworkException - when the position of the laneBasedObject is beyond (or before) the range of this Lane

      • removeLaneBasedObject

        public final void removeLaneBasedObject​(LaneBasedObject laneBasedObject)
                                 throws NetworkException
        Remove a laneBasedObject from the laneBasedObject list of this Lane.
        Parameters:
        laneBasedObject - LaneBasedObject; the laneBasedObject to remove.
        Throws:
        NetworkException - when the laneBasedObject was not found on this Lane

      • getLaneBasedObjects

        public final List<LaneBasedObject> getLaneBasedObjects​(Length minimumPosition,
                                                       Length maximumPosition)
        Retrieve the list of LaneBasedObjects of this Lane in the specified distance range. The resulting list is a defensive copy.
        Parameters:
        minimumPosition - Length; the minimum distance on the Lane (inclusive)
        maximumPosition - Length; the maximum distance on the Lane (inclusive)
        Returns:
        List<LaneBasedObject>; list of the laneBasedObject in the specified range. This is a defensive copy.

      • getLaneBasedObjects

        public final List<LaneBasedObject> getLaneBasedObjects()
        Retrieve the list of all LaneBasedObjects of this Lane. The resulting list is a defensive copy.
        Returns:
        List<LaneBasedObject>; list of the laneBasedObjects, in ascending order for the location on the Lane

      • getLaneBasedObjectMap

        public final SortedMap<Double,​List<LaneBasedObject>> getLaneBasedObjectMap()
        Retrieve the list of LaneBasedObjects of this Lane. The resulting Map is a defensive copy.
        Returns:
        SortedMap<Double, List<LaneBasedObject>>; all laneBasedObjects on this lane

      • position

        public final Length position​(double fraction)
        Transform a fraction on the lane to a relative length (can be less than zero or larger than the lane length).
        Parameters:
        fraction - double; fraction relative to the lane length.
        Returns:
        Length; the longitudinal length corresponding to the fraction.

      • positionSI

        public final double positionSI​(double fraction)
        Transform a fraction on the lane to a relative length in SI units (can be less than zero or larger than the lane length).
        Parameters:
        fraction - double; fraction relative to the lane length.
        Returns:
        double; length corresponding to the fraction, in SI units.

      • fraction

        public final double fraction​(Length position)
        Transform a position on the lane (can be less than zero or larger than the lane length) to a fraction.
        Parameters:
        position - Length; relative length on the lane (may be less than zero or larger than the lane length).
        Returns:
        fraction double; fraction relative to the lane length.

      • fractionSI

        public final double fractionSI​(double positionSI)
        Transform a position on the lane in SI units (can be less than zero or larger than the lane length) to a fraction.
        Parameters:
        positionSI - double; relative length on the lane in SI units (may be less than zero or larger than the lane length).
        Returns:
        double; fraction relative to the lane length.

      • addGTU

        public final int addGTU​(LaneBasedGTU gtu,
                        double fractionalPosition)
                 throws GTUException
        Add a LaneBasedGTU to the list of this Lane.
        Parameters:
        gtu - LaneBasedGTU; the GTU to add
        fractionalPosition - double; the fractional position that the newly added GTU will have on this Lane
        Returns:
        int; the rank that the newly added GTU has on this Lane (should be 0, except when the GTU enters this Lane due to a lane change operation)
        Throws:
        GTUException - when the fractionalPosition is outside the range 0..1, or the GTU is already registered on this Lane

      • addGTU

        public final int addGTU​(LaneBasedGTU gtu,
                        Length longitudinalPosition)
                 throws GTUException
        Add a LaneBasedGTU to the list of this Lane.
        Parameters:
        gtu - LaneBasedGTU; the GTU to add
        longitudinalPosition - Length; the longitudinal position that the newly added GTU will have on this Lane
        Returns:
        int; the rank that the newly added GTU has on this Lane (should be 0, except when the GTU enters this Lane due to a lane change operation)
        Throws:
        GTUException - when longitudinalPosition is negative or exceeds the length of this Lane

      • removeGTU

        public final void removeGTU​(LaneBasedGTU gtu,
                            boolean removeFromParentLink,
                            Length position)
        Remove a GTU from the GTU list of this lane.
        Parameters:
        gtu - LaneBasedGTU; the GTU to remove.
        removeFromParentLink - boolean; when the GTU leaves the last lane of the parentLink of this Lane
        position - Length; last position of the GTU

      • getLastGtu

        public final LaneBasedGTU getLastGtu​(GTUDirectionality direction)
                              throws GTUException
        Get the last GTU on the lane, relative to a driving direction on this lane.
        Parameters:
        direction - GTUDirectionality; whether we are looking in the the design line direction or against the center line direction.
        Returns:
        LaneBasedGTU; the last GTU on this lane in the given direction, or null if no GTU could be found.
        Throws:
        GTUException - when there is a problem with the position of the GTUs on the lane.

      • getFirstGtu

        public final LaneBasedGTU getFirstGtu​(GTUDirectionality direction)
                               throws GTUException
        Get the first GTU on the lane, relative to a driving direction on this lane.
        Parameters:
        direction - GTUDirectionality; whether we are looking in the the design line direction or against the center line direction.
        Returns:
        LaneBasedGTU; the first GTU on this lane in the given direction, or null if no GTU could be found.
        Throws:
        GTUException - when there is a problem with the position of the GTUs on the lane.

      • getGtuAhead

        public final LaneBasedGTU getGtuAhead​(Length position,
                                      GTUDirectionality direction,
                                      RelativePosition.TYPE relativePosition,
                                      Time when)
                               throws GTUException
        Get the first GTU where the relativePosition is in front of another GTU on the lane, in a driving direction on this lane, compared to the DESIGN LINE.
        Parameters:
        position - Length; the position before which the relative position of a GTU will be searched.
        direction - GTUDirectionality; whether we are looking in the the center line direction or against the center line direction.
        relativePosition - RelativePosition.TYPE; the relative position we want to compare against
        when - Time; the time for which to evaluate the positions.
        Returns:
        LaneBasedGTU; the first GTU before a position on this lane in the given direction, or null if no GTU could be found.
        Throws:
        GTUException - when there is a problem with the position of the GTUs on the lane.

      • getObjectAhead

        public final List<LaneBasedObject> getObjectAhead​(Length position,
                                                  GTUDirectionality direction)
        Get the first object where the relativePosition is in front of a certain position on the lane, in a driving direction on this lane, compared to the DESIGN LINE. Perception should iterate over results from this method to see what is most limiting.
        Parameters:
        position - Length; the position after which the relative position of an object will be searched.
        direction - GTUDirectionality; whether we are looking in the the center line direction or against the center line direction.
        Returns:
        List<LaneBasedObject>; the first object(s) before a position on this lane in the given direction, or null if no object could be found.

      • getObjectBehind

        public final List<LaneBasedObject> getObjectBehind​(Length position,
                                                   GTUDirectionality direction)
        Get the first object where the relativePosition is behind of a certain position on the lane, in a driving direction on this lane, compared to the DESIGN LINE. Perception should iterate over results from this method to see what is most limiting.
        Parameters:
        position - Length; the position after which the relative position of an object will be searched.
        direction - GTUDirectionality; whether we are looking in the the center line direction or against the center line direction.
        Returns:
        List<LaneBasedObject>; the first object(s) after a position on this lane in the given direction, or null if no object could be found.

      • getGtuBehind

        public final LaneBasedGTU getGtuBehind​(Length position,
                                       GTUDirectionality direction,
                                       RelativePosition.TYPE relativePosition,
                                       Time when)
                                throws GTUException
        Get the first GTU where the relativePosition is behind a certain position on the lane, in a driving direction on this lane, compared to the DESIGN LINE.
        Parameters:
        position - Length; the position before which the relative position of a GTU will be searched.
        direction - GTUDirectionality; whether we are looking in the the center line direction or against the center line direction.
        relativePosition - RelativePosition.TYPE; the relative position of the GTU we are looking for.
        when - Time; the time for which to evaluate the positions.
        Returns:
        LaneBasedGTU; the first GTU after a position on this lane in the given direction, or null if no GTU could be found.
        Throws:
        GTUException - when there is a problem with the position of the GTUs on the lane.

      • nextLanes

        public final Map<Lane,​GTUDirectionality> nextLanes​(GTUType gtuType)
        NextLanes returns the successor lane(s) in the design line direction, if any exist.
        The next lane(s) are cached, as it is too expensive to make the calculation every time. There are several possibilities: (1) Returning an empty set when there is no successor lane in the design direction or there is no longitudinal transfer possible to a successor lane in the design direction. (2) Returning a set with just one lane if the lateral position of the successor lane matches the lateral position of this lane (based on an overlap of the lateral positions of the two joining lanes of more than a certain percentage). (3) Multiple lanes in case the Node where the underlying Link for this Lane has multiple "outgoing" Links, and there are multiple lanes that match the lateral position of this lane.
        The next lanes can differ per GTU type. For instance, a lane where cars and buses are allowed can have a next lane where only buses are allowed, forcing the cars to leave that lane.
        Parameters:
        gtuType - the GTU type for which we return the next lanes, use null to return all next lanes and their design direction
        Returns:
        set of Lanes following this lane for the given GTU type.

      • prevLanes

        public final Map<Lane,​GTUDirectionality> prevLanes​(GTUType gtuType)
        PrevLanes returns the predecessor lane(s) relative to the design line direction, if any exist.
        The previous lane(s) are cached, as it is too expensive to make the calculation every time. There are several possibilities: (1) Returning an empty set when there is no predecessor lane relative to the design direction or there is no longitudinal transfer possible to a predecessor lane relative to the design direction. (2) Returning a set with just one lane if the lateral position of the predecessor lane matches the lateral position of this lane (based on an overlap of the lateral positions of the two joining lanes of more than a certain percentage). (3) Multiple lanes in case the Node where the underlying Link for this Lane has multiple "incoming" Links, and there are multiple lanes that match the lateral position of this lane.
        The previous lanes can differ per GTU type. For instance, a lane where cars and buses are allowed can be preceded by a lane where only buses are allowed.
        Parameters:
        gtuType - the GTU type for which we return the next lanes, use null to return all prev lanes and their design direction
        Returns:
        set of Lanes following this lane for the given GTU type.

      • downstreamLanes

        public final ImmutableMap<Lane,​GTUDirectionality> downstreamLanes​(GTUDirectionality direction,
                                                                        GTUType gtuType)
        Returns the lanes that could be followed in a given direction and for the given GTU type.
        Parameters:
        direction - GTUDirectionality; gtu direction
        gtuType - GTUType; gtu type
        Returns:
        lanes that can be followed in a given direction and for the given GTU type

      • upstreamLanes

        public final ImmutableMap<Lane,​GTUDirectionality> upstreamLanes​(GTUDirectionality direction,
                                                                      GTUType gtuType)
        Returns the lanes that could precede in a given direction and for the given GTU type.
        Parameters:
        direction - GTUDirectionality; gtu direction
        gtuType - GTUType; gtu type
        Returns:
        lanes that can be followed in a given direction and for the given GTU type

      • accessibleAdjacentLanesPhysical

        public final Set<Lane> accessibleAdjacentLanesPhysical​(LateralDirectionality lateralDirection,
                                                       GTUType gtuType,
                                                       GTUDirectionality drivingDirection)
        Determine the set of lanes to the left or to the right of this lane, which are accessible from this lane, or an empty set if no lane could be found. The method ignores all legal restrictions such as allowable directions and stripes.
        A lane is called adjacent to another lane if the lateral edges are not more than a delta distance apart. This means that a lane that overlaps with another lane is not returned as an adjacent lane.
        Note: LEFT and RIGHT are seen from the direction of the GTU, in its forward driving direction.
        Parameters:
        lateralDirection - LateralDirectionality; LEFT or RIGHT.
        gtuType - GTUType; the type of GTU for which to return the adjacent lanes.
        drivingDirection - GTUDirectionality; the driving direction of the GTU on <code>this</code> Lane
        Returns:
        the set of lanes that are accessible, or null if there is no lane that is accessible with a matching driving direction.

      • accessibleAdjacentLanesLegal

        public final Set<Lane> accessibleAdjacentLanesLegal​(LateralDirectionality lateralDirection,
                                                    GTUType gtuType,
                                                    GTUDirectionality drivingDirection)
        Determine the set of lanes to the left or to the right of this lane, which are accessible from this lane, or an empty set if no lane could be found. The method takes the LongitidinalDirectionality of the lane into account. In other words, if we drive in the DIR_PLUS direction and look for a lane on the LEFT, and there is a lane but the Directionality of that lane is not DIR_PLUS or DIR_BOTH, it will not be included.
        A lane is called adjacent to another lane if the lateral edges are not more than a delta distance apart. This means that a lane that overlaps with another lane is not returned as an adjacent lane.
        Note: LEFT and RIGHT are seen from the direction of the GTU, in its forward driving direction.
        Parameters:
        lateralDirection - LateralDirectionality; LEFT or RIGHT.
        gtuType - GTUType; the type of GTU for which to return the adjacent lanes.
        drivingDirection - GTUDirectionality; the driving direction of the GTU on <code>this</code> Lane
        Returns:
        the set of lanes that are accessible, or null if there is no lane that is accessible with a matching driving direction.

      • getSpeedLimit

        public final Speed getSpeedLimit​(GTUType gtuType)
                          throws NetworkException
        Get the speed limit of this lane, which can differ per GTU type. E.g., cars might be allowed to drive 120 km/h and trucks 90 km/h.
        Parameters:
        gtuType - GTUType; the GTU type to provide the speed limit for
        Returns:
        the speedLimit.
        Throws:
        NetworkException - on network inconsistency

      • getLowestSpeedLimit

        public final Speed getLowestSpeedLimit()
                                throws NetworkException
        Get the lowest speed limit of this lane.
        Returns:
        the lowest speedLimit.
        Throws:
        NetworkException - on network inconsistency

      • getHighestSpeedLimit

        public final Speed getHighestSpeedLimit()
                                 throws NetworkException
        Get the highest speed limit of this lane.
        Returns:
        the highest speedLimit.
        Throws:
        NetworkException - on network inconsistency

      • setSpeedLimit

        public final void setSpeedLimit​(GTUType gtuType,
                                Speed speedLimit)
        Set the speed limit of this lane, which can differ per GTU type. Cars might be allowed to drive 120 km/h and trucks 90 km/h. If the speed limit is the same for all GTU types, GTUType.ALL will be used. This means that the settings can be used additive, or subtractive.
        In additive use, do not set the speed limit for GTUType.ALL. Now, one by one, the allowed maximum speeds for each of the GTU Types have be added. Do this when there are few GTU types or the speed limits per TU type are very different.
        In subtractive use, set the speed limit for GTUType.ALL to the most common one. Override the speed limit for certain GTUTypes to a different value. An example is a lane on a highway where all vehicles, except truck (CAR, BUS, MOTORCYCLE, etc.), can drive 120 km/h, but trucks are allowed only 90 km/h. In that case, set the speed limit for GTUType.ALL to 120 km/h, and for TRUCK to 90 km/h.
        Parameters:
        gtuType - GTUType; the GTU type to provide the speed limit for
        speedLimit - Speed; the speed limit for this gtu type

      • removeSpeedLimit

        public final void removeSpeedLimit​(GTUType gtuType)
        Remove the set speed limit for a GTUType. If the speed limit for GTUType.ALL will be removed, there will not be a 'default' speed limit anymore. If the speed limit for a certain GTUType is removed, its speed limit will default to the speed limit of GTUType.ALL.
        Note: if no speed limit is known for a GTUType, getSpeedLimit will throw a NetworkException when the speed limit is retrieved for that GTUType.
        Parameters:
        gtuType - GTUType; the GTU type to provide the speed limit for

      • getLaneType

        public final LaneType getLaneType()
        Returns:
        laneType.

      • getGtuList

        public final List<LaneBasedGTU> getGtuList​(Time time)
        Returns the list of GTU's at the specified time.
        Parameters:
        time - Time; time
        Returns:
        list of GTU's at the specified times

      • numberOfGtus

        public final int numberOfGtus()
        Returns the number of GTU's.
        Returns:
        int; number of GTU's.

      • numberOfGtus

        public final int numberOfGtus​(Time time)
        Returns the number of GTU's at specified time.
        Parameters:
        time - Time; time
        Returns:
        int; number of GTU's.

      • indexOfGtu

        public final int indexOfGtu​(LaneBasedGTU gtu)
        Returns the index of the given GTU, or -1 if not present.
        Parameters:
        gtu - LaneBasedGTU; gtu to get the index of
        Returns:
        int; index of the given GTU, or -1 if not present

      • indexOfGtu

        public final int indexOfGtu​(LaneBasedGTU gtu,
                            Time time)
        Returns the index of the given GTU, or -1 if not present, at specified time.
        Parameters:
        gtu - LaneBasedGTU; gtu to get the index of
        time - Time; time
        Returns:
        int; index of the given GTU, or -1 if not present

      • getGtu

        public final LaneBasedGTU getGtu​(int index)
        Returns the index'th GTU.
        Parameters:
        index - int; index of the GTU
        Returns:
        LaneBasedGTU; the index'th GTU

      • getGtu

        public final LaneBasedGTU getGtu​(int index,
                                 Time time)
        Returns the index'th GTU at specified time.
        Parameters:
        index - int; index of the GTU
        time - Time; time
        Returns:
        LaneBasedGTU; the index'th GTU

      • getZ

        protected double getZ()
        Retrieve the Z offset (used to determine what covers what when drawing).
        Specified by:
        getZ in class CrossSectionElement
        Returns:
        double; the Z-offset for drawing (what's on top, what's underneath).