View Javadoc
1   package org.opentrafficsim.demo.carFollowing;
2   
3   import static org.opentrafficsim.core.gtu.GTUType.CAR;
4   
5   import java.awt.Container;
6   import java.awt.Frame;
7   import java.io.IOException;
8   import java.net.URL;
9   import java.rmi.RemoteException;
10  import java.util.ArrayList;
11  import java.util.LinkedHashSet;
12  import java.util.List;
13  import java.util.Random;
14  import java.util.Set;
15  
16  import javax.naming.NamingException;
17  import javax.swing.JComponent;
18  import javax.swing.JPanel;
19  import javax.swing.JScrollPane;
20  import javax.swing.SwingUtilities;
21  
22  import org.djunits.unit.TimeUnit;
23  import org.djunits.unit.UNITS;
24  import org.djunits.value.vdouble.scalar.Acceleration;
25  import org.djunits.value.vdouble.scalar.Duration;
26  import org.djunits.value.vdouble.scalar.Length;
27  import org.djunits.value.vdouble.scalar.Speed;
28  import org.djunits.value.vdouble.scalar.Time;
29  import org.opentrafficsim.base.modelproperties.BooleanProperty;
30  import org.opentrafficsim.base.modelproperties.CompoundProperty;
31  import org.opentrafficsim.base.modelproperties.ProbabilityDistributionProperty;
32  import org.opentrafficsim.base.modelproperties.Property;
33  import org.opentrafficsim.base.modelproperties.PropertyException;
34  import org.opentrafficsim.base.modelproperties.SelectionProperty;
35  import org.opentrafficsim.base.parameters.Parameters;
36  import org.opentrafficsim.core.dsol.OTSModelInterface;
37  import org.opentrafficsim.core.geometry.OTSGeometryException;
38  import org.opentrafficsim.core.geometry.OTSPoint3D;
39  import org.opentrafficsim.core.gtu.GTUDirectionality;
40  import org.opentrafficsim.core.gtu.GTUException;
41  import org.opentrafficsim.core.gtu.GTUType;
42  import org.opentrafficsim.core.network.NetworkException;
43  import org.opentrafficsim.core.network.OTSNetwork;
44  import org.opentrafficsim.core.network.OTSNode;
45  import org.opentrafficsim.graphs.AccelerationContourPlot;
46  import org.opentrafficsim.graphs.ContourPlot;
47  import org.opentrafficsim.graphs.DensityContourPlot;
48  import org.opentrafficsim.graphs.FlowContourPlot;
49  import org.opentrafficsim.graphs.LaneBasedGTUSampler;
50  import org.opentrafficsim.graphs.SpeedContourPlot;
51  import org.opentrafficsim.graphs.TrajectoryPlot;
52  import org.opentrafficsim.road.animation.AnimationToggles;
53  import org.opentrafficsim.road.gtu.animation.DefaultCarAnimation;
54  import org.opentrafficsim.road.gtu.lane.LaneBasedIndividualGTU;
55  import org.opentrafficsim.road.gtu.lane.tactical.LaneBasedGTUFollowingTacticalPlanner;
56  import org.opentrafficsim.road.gtu.lane.tactical.following.GTUFollowingModelOld;
57  import org.opentrafficsim.road.gtu.lane.tactical.following.IDMOld;
58  import org.opentrafficsim.road.gtu.lane.tactical.following.IDMPlusOld;
59  import org.opentrafficsim.road.gtu.strategical.LaneBasedStrategicalPlanner;
60  import org.opentrafficsim.road.gtu.strategical.route.LaneBasedStrategicalRoutePlanner;
61  import org.opentrafficsim.road.modelproperties.IDMPropertySet;
62  import org.opentrafficsim.road.network.factory.LaneFactory;
63  import org.opentrafficsim.road.network.lane.CrossSectionLink;
64  import org.opentrafficsim.road.network.lane.DirectedLanePosition;
65  import org.opentrafficsim.road.network.lane.Lane;
66  import org.opentrafficsim.road.network.lane.LaneType;
67  import org.opentrafficsim.road.network.lane.changing.OvertakingConditions;
68  import org.opentrafficsim.road.network.lane.object.sensor.SinkSensor;
69  import org.opentrafficsim.simulationengine.AbstractWrappableAnimation;
70  import org.opentrafficsim.simulationengine.OTSSimulationException;
71  import org.opentrafficsim.simulationengine.SimpleSimulatorInterface;
72  
73  import nl.tudelft.simulation.dsol.SimRuntimeException;
74  import nl.tudelft.simulation.dsol.gui.swing.HTMLPanel;
75  import nl.tudelft.simulation.dsol.gui.swing.TablePanel;
76  import nl.tudelft.simulation.dsol.simtime.SimTimeDoubleUnit;
77  import nl.tudelft.simulation.dsol.simulators.DEVSSimulatorInterface;
78  import nl.tudelft.simulation.dsol.simulators.SimulatorInterface;
79  
80  /**
81   * Simplest contour plots demonstration.
82   * <p>
83   * Copyright (c) 2013-2018 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
84   * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
85   * <p>
86   * $LastChangedDate: 2018-09-19 13:55:45 +0200 (Wed, 19 Sep 2018) $, @version $Revision: 4006 $, by $Author: averbraeck $,
87   * initial version 12 nov. 2014 <br>
88   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
89   */
90  public class Straight extends AbstractWrappableAnimation implements UNITS
91  {
92      /** */
93      private static final long serialVersionUID = 1L;
94  
95      /** The model. */
96      private StraightModel model;
97  
98      /**
99       * Create a ContourPlots simulation.
100      * @throws PropertyException when the provided properties could not be handled
101      */
102     public Straight() throws PropertyException
103     {
104         List<Property<?>> outputProperties = new ArrayList<>();
105         outputProperties.add(new BooleanProperty("DensityPlot", "Density", "Density contour plot", true, false, 0));
106         outputProperties.add(new BooleanProperty("FlowPlot", "Flow", "Flow contour plot", true, false, 1));
107         outputProperties.add(new BooleanProperty("SpeedPlot", "Speed", "Speed contour plot", true, false, 2));
108         outputProperties
109                 .add(new BooleanProperty("AccelerationPlot", "Acceleration", "Acceleration contour plot", true, false, 3));
110         outputProperties.add(
111                 new BooleanProperty("TrajectoryPlot", "Trajectories", "Trajectory (time/distance) diagram", true, false, 4));
112         this.properties.add(new CompoundProperty("OutputGraphs", "Output graphs", "Select the graphical output",
113                 outputProperties, true, 1000));
114     }
115 
116     /** {@inheritDoc} */
117     @Override
118     public final void stopTimersThreads()
119     {
120         super.stopTimersThreads();
121         this.model = null;
122     }
123 
124     /**
125      * Main program.
126      * @param args String[]; the command line arguments (not used)
127      * @throws SimRuntimeException when simulation cannot be created with given parameters
128      */
129     public static void main(final String[] args) throws SimRuntimeException
130     {
131         SwingUtilities.invokeLater(new Runnable()
132         {
133             @SuppressWarnings("synthetic-access")
134             @Override
135             public void run()
136             {
137                 try
138                 {
139                     Straight straight = new Straight();
140                     List<Property<?>> localProperties = straight.getProperties();
141                     try
142                     {
143                         localProperties.add(new ProbabilityDistributionProperty("TrafficComposition", "Traffic composition",
144                                 "<html>Mix of passenger cars and trucks</html>", new String[] { "passenger car", "truck" },
145                                 new Double[] { 0.8, 0.2 }, false, 10));
146                     }
147                     catch (PropertyException exception)
148                     {
149                         exception.printStackTrace();
150                     }
151                     localProperties.add(new SelectionProperty("CarFollowingModel", "Car following model",
152                             "<html>The car following model determines "
153                                     + "the acceleration that a vehicle will make taking into account "
154                                     + "nearby vehicles, infrastructural restrictions (e.g. speed limit, "
155                                     + "curvature of the road) capabilities of the vehicle and personality "
156                                     + "of the driver.</html>",
157                             new String[] { "IDM", "IDM+" }, 1, false, 1));
158                     localProperties.add(IDMPropertySet.makeIDMPropertySet("IDMCar", "Car",
159                             new Acceleration(1.0, METER_PER_SECOND_2), new Acceleration(1.5, METER_PER_SECOND_2),
160                             new Length(2.0, METER), new Duration(1.0, SECOND), 2));
161                     localProperties.add(IDMPropertySet.makeIDMPropertySet("IDMTruck", "Truck",
162                             new Acceleration(0.5, METER_PER_SECOND_2), new Acceleration(1.25, METER_PER_SECOND_2),
163                             new Length(2.0, METER), new Duration(1.0, SECOND), 3));
164                     straight.buildAnimator(Time.ZERO, Duration.ZERO, new Duration(3600.0, SECOND), localProperties, null, true);
165                     straight.panel.getTabbedPane().addTab("info", straight.makeInfoPane());
166                 }
167                 catch (SimRuntimeException | NamingException | OTSSimulationException | PropertyException exception)
168                 {
169                     exception.printStackTrace();
170                 }
171             }
172         });
173     }
174 
175     /** {@inheritDoc} */
176     @Override
177     protected final void addAnimationToggles()
178     {
179         AnimationToggles.setTextAnimationTogglesStandard(this);
180     }
181 
182     /** {@inheritDoc} */
183     @Override
184     protected final OTSModelInterface makeModel()
185     {
186         this.model = new StraightModel(this.savedUserModifiedProperties);
187         return this.model;
188     }
189 
190     /**
191      * @return an info pane to be added to the tabbed pane.
192      */
193     protected final JComponent makeInfoPane()
194     {
195         // Make the info tab
196         String helpSource = "/" + StraightModel.class.getPackage().getName().replace('.', '/') + "/IDMPlus.html";
197         URL page = StraightModel.class.getResource(helpSource);
198         if (page != null)
199         {
200             try
201             {
202                 HTMLPanel htmlPanel = new HTMLPanel(page);
203                 return new JScrollPane(htmlPanel);
204             }
205             catch (IOException exception)
206             {
207                 exception.printStackTrace();
208             }
209         }
210         return new JPanel();
211     }
212 
213     /** {@inheritDoc} */
214     @Override
215     protected final void addTabs(final SimpleSimulatorInterface simulator) throws OTSSimulationException, PropertyException
216     {
217 
218         // Make the tab with the plots
219         Property<?> output = new CompoundProperty("", "", "", this.properties, false, 0).findByKey("OutputGraphs");
220         if (null == output)
221         {
222             throw new Error("Cannot find output properties");
223         }
224         ArrayList<BooleanProperty> graphs = new ArrayList<>();
225         if (output instanceof CompoundProperty)
226         {
227             CompoundProperty outputProperties = (CompoundProperty) output;
228             for (Property<?> ap : outputProperties.getValue())
229             {
230                 if (ap instanceof BooleanProperty)
231                 {
232                     BooleanProperty bp = (BooleanProperty) ap;
233                     if (bp.getValue())
234                     {
235                         graphs.add(bp);
236                     }
237                 }
238             }
239         }
240         else
241         {
242             throw new Error("output properties should be compound");
243         }
244         int graphCount = graphs.size();
245         int columns = (int) Math.ceil(Math.sqrt(graphCount));
246         int rows = 0 == columns ? 0 : (int) Math.ceil(graphCount * 1.0 / columns);
247         TablePanel charts = new TablePanel(columns, rows);
248 
249         for (int i = 0; i < graphCount; i++)
250         {
251             String graphName = graphs.get(i).getKey();
252             Container container = null;
253             LaneBasedGTUSampler graph;
254             if (graphName.contains("TrajectoryPlot"))
255             {
256                 List<Lane> path = new ArrayList<>();
257                 path.add(this.model.getLane());
258                 TrajectoryPlot tp = new TrajectoryPlot("Trajectory Graph", new Duration(0.5, SECOND), path, simulator);
259                 tp.setTitle("Trajectory Graph");
260                 tp.setExtendedState(Frame.MAXIMIZED_BOTH);
261                 graph = tp;
262                 container = tp.getContentPane();
263             }
264             else
265             {
266                 ContourPlot cp;
267                 if (graphName.contains("DensityPlot"))
268                 {
269                     cp = new DensityContourPlot("Density Graph", this.model.getPath());
270                     cp.setTitle("Density Contour Graph");
271                 }
272                 else if (graphName.contains("SpeedPlot"))
273                 {
274                     cp = new SpeedContourPlot("Speed Graph", this.model.getPath());
275                     cp.setTitle("Speed Contour Graph");
276                 }
277                 else if (graphName.contains("Flow"))
278                 {
279                     cp = new FlowContourPlot("Flow Graph", this.model.getPath());
280                     cp.setTitle("Flow Contour Graph");
281                 }
282                 else if (graphName.contains("AccelerationPlot"))
283                 {
284                     cp = new AccelerationContourPlot("Acceleration Graph", this.model.getPath());
285                     cp.setTitle("Acceleration Contour Graph");
286                 }
287                 else
288                 {
289                     throw new Error("Unhandled type of contourplot: " + graphName);
290                 }
291                 graph = cp;
292                 container = cp.getContentPane();
293             }
294             // Add the container to the matrix
295             charts.setCell(container, i % columns, i / columns);
296             this.model.getPlots().add(graph);
297         }
298         addTab(getTabCount(), "statistics", charts);
299     }
300 
301     /** {@inheritDoc} */
302     @Override
303     public final String shortName()
304     {
305         return "Straight lane";
306     }
307 
308     /** {@inheritDoc} */
309     @Override
310     public final String description()
311     {
312         return "<html><h1>Simulation of a straight one-lane road with opening bridge</H1>"
313                 + "Simulation of a single lane road of 5 km length. Vehicles are generated at a constant rate of "
314                 + "1500 veh/hour. At time 300s a blockade is inserted at position 4km; this blockade is removed at "
315                 + "time 420s. This blockade simulates a bridge opening.<br>"
316                 + "The blockade causes a traffic jam that slowly dissolves after the blockade is removed.<br>"
317                 + "Selected trajectory and contour plots are generated during the simulation.</html>";
318     }
319 
320     /**
321      * Simulate a single lane road of 5 km length. Vehicles are generated at a constant rate of 1500 veh/hour. At time 300s a
322      * blockade is inserted at position 4 km; this blockade is removed at time 500s. The used car following algorithm is IDM+
323      * <a href="http://opentrafficsim.org/downloads/MOTUS%20reference.pdf"><i>Integrated Lane Change Model with Relaxation and
324      * Synchronization</i>, by Wouter J. Schakel, Victor L. Knoop and Bart van Arem, 2012</a>. <br>
325      * Output is a set of block charts:
326      * <ul>
327      * <li>Traffic density</li>
328      * <li>Speed</li>
329      * <li>Flow</li>
330      * <li>Acceleration</li>
331      * </ul>
332      * All these graphs display simulation time along the horizontal axis and distance along the road along the vertical axis.
333      * <p>
334      * Copyright (c) 2013-2018 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
335      * <br>
336      * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
337      * <p>
338      * $LastChangedDate: 2018-09-19 13:55:45 +0200 (Wed, 19 Sep 2018) $, @version $Revision: 4006 $, by $Author: averbraeck $,
339      * initial version ug 1, 2014 <br>
340      * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
341      */
342     class StraightModel implements OTSModelInterface, UNITS
343     {
344         /** */
345         private static final long serialVersionUID = 20140815L;
346 
347         /** The simulator. */
348         private DEVSSimulatorInterface.TimeDoubleUnit simulator;
349 
350         /** The network. */
351         private final OTSNetwork network = new OTSNetwork("network");
352 
353         /** The headway (inter-vehicle time). */
354         private Duration headway;
355 
356         /** Number of cars created. */
357         private int carsCreated = 0;
358 
359         /** Type of all GTUs. */
360         private GTUType gtuType = CAR;
361 
362         /** The car following model, e.g. IDM Plus for cars. */
363         private GTUFollowingModelOld carFollowingModelCars;
364 
365         /** The car following model, e.g. IDM Plus for trucks. */
366         private GTUFollowingModelOld carFollowingModelTrucks;
367 
368         /** The probability that the next generated GTU is a passenger car. */
369         private double carProbability;
370 
371         /** The blocking car. */
372         private LaneBasedIndividualGTU block = null;
373 
374         /** Minimum distance. */
375         private Length minimumDistance = new Length(0, METER);
376 
377         /** Maximum distance. */
378         private Length maximumDistance = new Length(5000, METER);
379 
380         /** The Lane that contains the simulated Cars. */
381         private Lane lane;
382 
383         /** The contour plots. */
384         private List<LaneBasedGTUSampler> plots = new ArrayList<>();
385 
386         /** User settable properties. */
387         private List<Property<?>> properties = null;
388 
389         /** The random number generator used to decide what kind of GTU to generate. */
390         private Random randomGenerator = new Random(12345);
391 
392         /**
393          * @param properties the user settable properties
394          */
395         StraightModel(final List<Property<?>> properties)
396         {
397             this.properties = properties;
398         }
399 
400         /** The sequence of Lanes that all vehicles will follow. */
401         private List<Lane> path = new ArrayList<>();
402 
403         /** The speed limit on all Lanes. */
404         private Speed speedLimit = new Speed(100, KM_PER_HOUR);
405 
406         /**
407          * @return List&lt;Lane*gt;; the set of lanes for the specified index
408          */
409         public List<Lane> getPath()
410         {
411             return new ArrayList<>(this.path);
412         }
413 
414         /** {@inheritDoc} */
415         @Override
416         public final void constructModel(final SimulatorInterface<Time, Duration, SimTimeDoubleUnit> theSimulator)
417                 throws SimRuntimeException
418         {
419             this.simulator = (DEVSSimulatorInterface.TimeDoubleUnit) theSimulator;
420             try
421             {
422                 OTSNode from = new OTSNode(this.network, "From", new OTSPoint3D(getMinimumDistance().getSI(), 0, 0));
423                 OTSNode to = new OTSNode(this.network, "To", new OTSPoint3D(getMaximumDistance().getSI(), 0, 0));
424                 OTSNode end = new OTSNode(this.network, "End", new OTSPoint3D(getMaximumDistance().getSI() + 50.0, 0, 0));
425                 LaneType laneType = LaneType.TWO_WAY_LANE;
426                 this.lane =
427                         LaneFactory.makeLane(this.network, "Lane", from, to, null, laneType, this.speedLimit, this.simulator);
428                 this.path.add(this.lane);
429                 CrossSectionLink endLink = LaneFactory.makeLink(this.network, "endLink", to, end, null, simulator);
430                 // No overtaking, single lane
431                 Lane sinkLane = new Lane(endLink, "sinkLane", this.lane.getLateralCenterPosition(1.0),
432                         this.lane.getLateralCenterPosition(1.0), this.lane.getWidth(1.0), this.lane.getWidth(1.0), laneType,
433                         this.speedLimit, new OvertakingConditions.None());
434                 new SinkSensor(sinkLane, new Length(10.0, METER), this.simulator);
435                 String carFollowingModelName = null;
436                 CompoundProperty propertyContainer = new CompoundProperty("", "", "", this.properties, false, 0);
437                 Property<?> cfmp = propertyContainer.findByKey("CarFollowingModel");
438                 if (null == cfmp)
439                 {
440                     throw new Error("Cannot find \"Car following model\" property");
441                 }
442                 if (cfmp instanceof SelectionProperty)
443                 {
444                     carFollowingModelName = ((SelectionProperty) cfmp).getValue();
445                 }
446                 else
447                 {
448                     throw new Error("\"Car following model\" property has wrong type");
449                 }
450                 for (Property<?> ap : new CompoundProperty("", "", "", this.properties, false, 0))
451                 {
452                     if (ap instanceof SelectionProperty)
453                     {
454                         SelectionProperty sp = (SelectionProperty) ap;
455                         if ("CarFollowingModel".equals(sp.getKey()))
456                         {
457                             carFollowingModelName = sp.getValue();
458                         }
459                     }
460                     else if (ap instanceof ProbabilityDistributionProperty)
461                     {
462                         ProbabilityDistributionProperty pdp = (ProbabilityDistributionProperty) ap;
463                         String modelName = ap.getKey();
464                         if (modelName.equals("TrafficComposition"))
465                         {
466                             this.carProbability = pdp.getValue()[0];
467                         }
468                     }
469                     else if (ap instanceof CompoundProperty)
470                     {
471                         CompoundProperty cp = (CompoundProperty) ap;
472                         if (ap.getKey().equals("OutputGraphs"))
473                         {
474                             continue; // Output settings are handled elsewhere
475                         }
476                         if (ap.getKey().contains("IDM"))
477                         {
478                             Acceleration a = IDMPropertySet.getA(cp);
479                             Acceleration b = IDMPropertySet.getB(cp);
480                             Length s0 = IDMPropertySet.getS0(cp);
481                             Duration tSafe = IDMPropertySet.getTSafe(cp);
482                             GTUFollowingModelOld gtuFollowingModel = null;
483                             if (carFollowingModelName.equals("IDM"))
484                             {
485                                 gtuFollowingModel = new IDMOld(a, b, s0, tSafe, 1.0);
486                             }
487                             else if (carFollowingModelName.equals("IDM+"))
488                             {
489                                 gtuFollowingModel = new IDMPlusOld(a, b, s0, tSafe, 1.0);
490                             }
491                             else
492                             {
493                                 throw new Error("Unknown gtu following model: " + carFollowingModelName);
494                             }
495                             if (ap.getKey().contains("Car"))
496                             {
497                                 this.carFollowingModelCars = gtuFollowingModel;
498                             }
499                             else if (ap.getKey().contains("Truck"))
500                             {
501                                 this.carFollowingModelTrucks = gtuFollowingModel;
502                             }
503                             else
504                             {
505                                 throw new Error("Cannot determine gtu type for " + ap.getKey());
506                             }
507                             /*
508                              * System.out.println("Created " + carFollowingModelName + " for " + p.getKey());
509                              * System.out.println("a: " + a); System.out.println("b: " + b); System.out.println("s0: " + s0);
510                              * System.out.println("tSafe: " + tSafe);
511                              */
512                         }
513                     }
514                 }
515 
516                 // 1500 [veh / hour] == 2.4s headway
517                 this.headway = new Duration(3600.0 / 1500.0, SECOND);
518                 // Schedule creation of the first car (it will re-schedule itself one headway later, etc.).
519                 this.simulator.scheduleEventAbs(Time.ZERO, this, this, "generateCar", null);
520                 // Create a block at t = 5 minutes
521                 this.simulator.scheduleEventAbs(new Time(300, TimeUnit.BASE_SECOND), this, this, "createBlock", null);
522                 // Remove the block at t = 7 minutes
523                 this.simulator.scheduleEventAbs(new Time(420, TimeUnit.BASE_SECOND), this, this, "removeBlock", null);
524                 // Schedule regular updates of the graphs
525                 for (int t = 1; t <= 1800; t++)
526                 {
527                     this.simulator.scheduleEventAbs(new Time(t - 0.001, TimeUnit.BASE_SECOND), this, this, "drawGraphs", null);
528                 }
529             }
530             catch (SimRuntimeException | NamingException | NetworkException | OTSGeometryException
531                     | PropertyException exception)
532             {
533                 exception.printStackTrace();
534             }
535         }
536 
537         /**
538          * Notify the contour plots that the underlying data has changed.
539          */
540         protected final void drawGraphs()
541         {
542             for (LaneBasedGTUSampler plot : this.plots)
543             {
544                 plot.reGraph();
545             }
546         }
547 
548         /**
549          * Set up the block.
550          */
551         protected final void createBlock()
552         {
553             Length initialPosition = new Length(4000, METER);
554             Set<DirectedLanePosition> initialPositions = new LinkedHashSet<>(1);
555             try
556             {
557                 initialPositions.add(new DirectedLanePosition(this.lane, initialPosition, GTUDirectionality.DIR_PLUS));
558                 Parameters parameters = DefaultsFactory.getDefaultParameters();
559                 this.block = new LaneBasedIndividualGTU("999999", this.gtuType, new Length(4, METER), new Length(1.8, METER),
560                         Speed.ZERO, Length.createSI(2.0), this.simulator, this.network);
561                 LaneBasedStrategicalPlanner strategicalPlanner = new LaneBasedStrategicalRoutePlanner(
562                         new LaneBasedGTUFollowingTacticalPlanner(new IDMOld(), this.block), this.block);
563                 this.block.setParameters(parameters);
564                 this.block.initWithAnimation(strategicalPlanner, initialPositions, Speed.ZERO, DefaultCarAnimation.class,
565                         Straight.this.getColorer());
566             }
567             catch (SimRuntimeException | NamingException | NetworkException | GTUException | OTSGeometryException exception)
568             {
569                 exception.printStackTrace();
570             }
571         }
572 
573         /**
574          * Remove the block.
575          */
576         protected final void removeBlock()
577         {
578             this.block.destroy();
579             this.block = null;
580         }
581 
582         /**
583          * Generate cars at a fixed rate (implemented by re-scheduling this method).
584          */
585         protected final void generateCar()
586         {
587             boolean generateTruck = this.randomGenerator.nextDouble() > this.carProbability;
588             Length initialPosition = new Length(0, METER);
589             Speed initialSpeed = new Speed(100, KM_PER_HOUR);
590             Set<DirectedLanePosition> initialPositions = new LinkedHashSet<>(1);
591             try
592             {
593                 initialPositions.add(new DirectedLanePosition(this.lane, initialPosition, GTUDirectionality.DIR_PLUS));
594                 Length vehicleLength = new Length(generateTruck ? 15 : 4, METER);
595                 GTUFollowingModelOld gtuFollowingModel =
596                         generateTruck ? this.carFollowingModelTrucks : this.carFollowingModelCars;
597                 if (null == gtuFollowingModel)
598                 {
599                     throw new Error("gtuFollowingModel is null");
600                 }
601                 Parameters parameters = DefaultsFactory.getDefaultParameters();
602                 LaneBasedIndividualGTU gtu = new LaneBasedIndividualGTU("" + (++this.carsCreated), this.gtuType, vehicleLength,
603                         new Length(1.8, METER), new Speed(200, KM_PER_HOUR), vehicleLength.multiplyBy(0.5), this.simulator,
604                         this.network);
605                 LaneBasedStrategicalPlanner strategicalPlanner = new LaneBasedStrategicalRoutePlanner(
606                         new LaneBasedGTUFollowingTacticalPlanner(gtuFollowingModel, gtu), gtu);
607                 gtu.setParameters(parameters);
608                 gtu.initWithAnimation(strategicalPlanner, initialPositions, initialSpeed, DefaultCarAnimation.class,
609                         Straight.this.getColorer());
610                 this.simulator.scheduleEventRel(this.headway, this, this, "generateCar", null);
611             }
612             catch (SimRuntimeException | NamingException | NetworkException | GTUException | OTSGeometryException exception)
613             {
614                 exception.printStackTrace();
615             }
616         }
617 
618         /** {@inheritDoc} */
619         @Override
620         public final SimulatorInterface<Time, Duration, SimTimeDoubleUnit> getSimulator()
621         {
622             return this.simulator;
623         }
624 
625         /** {@inheritDoc} */
626         @Override
627         public OTSNetwork getNetwork()
628         {
629             return this.network;
630         }
631 
632         /**
633          * @return contourPlots
634          */
635         public final List<LaneBasedGTUSampler> getPlots()
636         {
637             return this.plots;
638         }
639 
640         /**
641          * @return minimumDistance
642          */
643         public final Length getMinimumDistance()
644         {
645             return this.minimumDistance;
646         }
647 
648         /**
649          * @return maximumDistance
650          */
651         public final Length getMaximumDistance()
652         {
653             return this.maximumDistance;
654         }
655 
656         /**
657          * @return lane.
658          */
659         public Lane getLane()
660         {
661             return this.lane;
662         }
663     }
664 
665 }