1 package org.opentrafficsim.road.gtu.lane.tactical.lanechangemobil;
2
3 import java.util.Collection;
4
5 import org.djunits.value.vdouble.scalar.Acceleration;
6 import org.djunits.value.vdouble.scalar.Speed;
7 import org.opentrafficsim.core.gtu.GTUException;
8 import org.opentrafficsim.road.gtu.lane.LaneBasedGTU;
9 import org.opentrafficsim.road.gtu.lane.tactical.following.HeadwayGTU;
10
11 /**
12 * All lane change models must implement this interface. <br>
13 * TODO: Lane change models should use the perceived nearby GTUs rather than a provided list of same lane traffic, etc.
14 * <p>
15 * Copyright (c) 2013-2015 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
16 * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
17 * <p>
18 * @version $Revision: 1401 $, $LastChangedDate: 2015-09-14 01:33:02 +0200 (Mon, 14 Sep 2015) $, by $Author: averbraeck $,
19 * initial version 3 nov. 2014 <br>
20 * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
21 * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
22 */
23 public interface LaneChangeModel
24 {
25 /**
26 * Compute the acceleration and lane change.
27 * @param gtu GTU; the GTU for which the acceleration and lane change is computed
28 * @param sameLaneTraffic Collection<GTU>; the set of observable GTUs in the current lane (can not be null and may
29 * include the <code>gtu</code>)
30 * @param rightLaneTraffic Collection<GTU>; the set of observable GTUs in the adjacent lane where GTUs should drive in
31 * the absence of other traffic (must be null if there is no such lane)
32 * @param leftLaneTraffic Collection<GTU>; the set of observable GTUs in the adjacent lane into which GTUs should
33 * merge to overtake other traffic (must be null if there is no such lane)
34 * @param speedLimit DoubleScalarAbs<SpeedUnit>; the local speed limit
35 * @param preferredLaneRouteIncentive Acceleration; route incentive to merge to the adjacent lane where GTUs should drive in
36 * the absence of other traffic
37 * @param laneChangeThreshold Acceleration; threshold that prevents lane changes that have very little benefit
38 * @param nonPreferredLaneRouteIncentive Acceleration; route incentive to merge to the adjacent lane into which GTUs should
39 * merge to overtake other traffic
40 * @return LaneMovementStep; the result of the lane change and GTU following model
41 * @throws GTUException when the speed of the GTU can not be determined
42 */
43 @SuppressWarnings("checkstyle:parameternumber")
44 LaneMovementStep computeLaneChangeAndAcceleration(final LaneBasedGTU gtu,
45 final Collection<HeadwayGTU> sameLaneTraffic, final Collection<HeadwayGTU> rightLaneTraffic,
46 final Collection<HeadwayGTU> leftLaneTraffic, final Speed speedLimit,
47 final Acceleration preferredLaneRouteIncentive, final Acceleration laneChangeThreshold,
48 final Acceleration nonPreferredLaneRouteIncentive) throws GTUException;
49
50 /**
51 * Return the name of this GTU following model.
52 * @return String; just the name of the GTU following model
53 */
54 String getName();
55
56 /**
57 * Return complete textual information about this instantiation of this GTU following model.
58 * @return String; the name and parameter values of the GTU following model
59 */
60 String getLongName();
61
62 }