Package org.opentrafficsim.road.gtu.lane.tactical.lanechangemobil

Class AbstractLaneChangeModel

java.lang.Object

org.opentrafficsim.road.gtu.lane.tactical.lanechangemobil.AbstractLaneChangeModel

All Implemented Interfaces:

LaneChangeModel

Direct Known Subclasses:

Altruistic, Egoistic

public abstract class AbstractLaneChangeModel
extends Object
implements LaneChangeModel

Common code for a family of lane change models like in M. Treiber and A. Kesting Traffic Flow Dynamics, Springer-Verlag Berlin Heidelberg 2013, pp 239-244.

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.

Version:

$Revision: 1401 $, $LastChangedDate: 2015-09-14 01:33:02 +0200 (Mon, 14 Sep 2015) $, by $Author: averbraeck $, initial version 4 nov. 2014

Author:

Peter Knoppers

Field Summary

Fields

Modifier and Type	Field	Description
protected static ParameterTypeAcceleration	B	Comfortable deceleration parameter type.
protected static ParameterTypeLength	LOOKAHEAD	Look ahead parameter type.

Constructor Summary

Constructors

Constructor	Description
AbstractLaneChangeModel()

Method Summary

Modifier and Type	Method	Description
abstract Acceleration	applyDriverPersonality(DualAccelerationStep accelerationSteps)	Return the weighted acceleration as described by the personality.
LaneMovementStep	computeLaneChangeAndAcceleration(LaneBasedGTU gtu, Collection<Headway> sameLaneGTUs, Collection<Headway> preferredLaneGTUs, Collection<Headway> nonPreferredLaneGTUs, Speed speedLimit, Acceleration preferredLaneRouteIncentive, Acceleration laneChangeThreshold, Acceleration nonPreferredLaneRouteIncentive)	Compute the acceleration and lane change.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.opentrafficsim.road.gtu.lane.tactical.lanechangemobil.LaneChangeModel

getLongName, getName

Field Detail

LOOKAHEAD

protected static final ParameterTypeLength LOOKAHEAD

Look ahead parameter type.

B

protected static final ParameterTypeAcceleration B

Comfortable deceleration parameter type.

Constructor Detail

AbstractLaneChangeModel

public AbstractLaneChangeModel()

Method Detail

computeLaneChangeAndAcceleration

public final LaneMovementStep computeLaneChangeAndAcceleration(LaneBasedGTU gtu,
                                                               Collection<Headway> sameLaneGTUs,
                                                               Collection<Headway> preferredLaneGTUs,
                                                               Collection<Headway> nonPreferredLaneGTUs,
                                                               Speed speedLimit,
                                                               Acceleration preferredLaneRouteIncentive,
                                                               Acceleration laneChangeThreshold,
                                                               Acceleration nonPreferredLaneRouteIncentive)
                                                        throws ParameterException,
                                                               OperationalPlanException

Compute the acceleration and lane change.

Specified by:

computeLaneChangeAndAcceleration in interface LaneChangeModel

Parameters:

gtu - LaneBasedGTU; the GTU for which the acceleration and lane change is computed

sameLaneGTUs - Collection<Headway>; the set of observable GTUs in the current lane (can not be null and may include the gtu)

preferredLaneGTUs - Collection<Headway>; the set of observable GTUs in the adjacent lane where GTUs should drive in the absence of other traffic (must be null if there is no such lane)

nonPreferredLaneGTUs - Collection<Headway>; the set of observable GTUs in the adjacent lane into which GTUs should merge to overtake other traffic (must be null if there is no such lane)

speedLimit - Speed; the local speed limit

preferredLaneRouteIncentive - Acceleration; route incentive to merge to the adjacent lane where GTUs should drive in the absence of other traffic

laneChangeThreshold - Acceleration; threshold that prevents lane changes that have very little benefit

nonPreferredLaneRouteIncentive - Acceleration; route incentive to merge to the adjacent lane into which GTUs should merge to overtake other traffic

Returns:

LaneMovementStep; the result of the lane change and GTU following model

Throws:

ParameterException - in case of a parameter problem.

OperationalPlanException - if DefaultAlexander perception category is not present.

applyDriverPersonality

public abstract Acceleration applyDriverPersonality(DualAccelerationStep accelerationSteps)

Return the weighted acceleration as described by the personality. This incorporates the personality of the driver to the lane change decisions.

Parameters:

accelerationSteps - DualAccelerationStep; the DualAccelerationStep that contains the AccelerationStep that the reference GTU will make and the AccelerationStep that the (new) follower GTU will make

Returns:

Acceleration; the acceleration that the personality of the driver uses (in a comparison to a similarly computed acceleration in the non-, or different-lane-changed state) to decide if a lane change should be performed