SUMO - Simulation of Urban MObility
MSCFModel_IDM.h
Go to the documentation of this file.
1 /****************************************************************************/
9 // The Intelligent Driver Model (IDM) car-following model
10 /****************************************************************************/
11 // SUMO, Simulation of Urban MObility; see http://sumo.dlr.de/
12 // Copyright (C) 2001-2017 DLR (http://www.dlr.de/) and contributors
13 /****************************************************************************/
14 //
15 // This file is part of SUMO.
16 // SUMO is free software: you can redistribute it and/or modify
17 // it under the terms of the GNU General Public License as published by
18 // the Free Software Foundation, either version 3 of the License, or
19 // (at your option) any later version.
20 //
21 /****************************************************************************/
22 #ifndef MSCFMODEL_IDM_H
23 #define MSCFMODEL_IDM_H
24 
25 // ===========================================================================
26 // included modules
27 // ===========================================================================
28 #ifdef _MSC_VER
29 #include <windows_config.h>
30 #else
31 #include <config.h>
32 #endif
33 
34 #include "MSCFModel.h"
35 #include <microsim/MSLane.h>
36 #include <microsim/MSVehicle.h>
37 #include <microsim/MSVehicleType.h>
39 
40 
41 // ===========================================================================
42 // class definitions
43 // ===========================================================================
48 class MSCFModel_IDM : public MSCFModel {
49 public:
58  MSCFModel_IDM(const MSVehicleType* vtype, double accel, double decel, double emergencyDecel,
59  double headwayTime, double delta, double internalStepping);
60 
61 
70  MSCFModel_IDM(const MSVehicleType* vtype, double accel, double decel, double emergencyDecel,
71  double headwayTime, double adaptationFactor, double adaptationTime,
72  double internalStepping);
73 
74 
77 
78 
81 
87  double moveHelper(MSVehicle* const veh, double vPos) const;
88 
89 
98  double followSpeed(const MSVehicle* const veh, double speed, double gap2pred, double predSpeed, double predMaxDecel) const;
99 
100 
108  double stopSpeed(const MSVehicle* const veh, const double speed, double gap2pred) const;
109 
110 
120  double interactionGap(const MSVehicle* const , double vL) const;
121 
122 
127  int getModelID() const {
129  }
131 
132 
133 
138  MSCFModel* duplicate(const MSVehicleType* vtype) const;
139 
140 
142  if (myAdaptationFactor != 1.) {
143  return new VehicleVariables();
144  }
145  return 0;
146  }
147 
148 
149 private:
151  public:
155  };
156 
157 
158 private:
159  double _v(const MSVehicle* const veh, const double gap2pred, const double mySpeed,
160  const double predSpeed, const double desSpeed, const bool respectMinGap = true) const;
161 
162 
163 private:
165  const double myDelta;
166 
168  const double myAdaptationFactor;
169 
171  const double myAdaptationTime;
172 
174  const int myIterations;
175 
177  const double myTwoSqrtAccelDecel;
178 
179 private:
182 };
183 
184 #endif /* MSCFMODEL_IDM_H */
~MSCFModel_IDM()
Destructor.
Representation of a vehicle in the micro simulation.
Definition: MSVehicle.h:83
double interactionGap(const MSVehicle *const, double vL) const
Returns the maximum gap at which an interaction between both vehicles occurs.
double moveHelper(MSVehicle *const veh, double vPos) const
Applies interaction with stops and lane changing model influences.
MSCFModel * duplicate(const MSVehicleType *vtype) const
Duplicates the car-following model.
double followSpeed(const MSVehicle *const veh, double speed, double gap2pred, double predSpeed, double predMaxDecel) const
Computes the vehicle&#39;s safe speed (no dawdling)
const double myDelta
The IDM delta exponent.
The Intelligent Driver Model (IDM) car-following model.
Definition: MSCFModel_IDM.h:48
The car-following model abstraction.
Definition: MSCFModel.h:60
const double myAdaptationFactor
The IDMM adaptation factor beta.
MSCFModel_IDM(const MSVehicleType *vtype, double accel, double decel, double emergencyDecel, double headwayTime, double delta, double internalStepping)
Constructor.
The car-following model and parameter.
Definition: MSVehicleType.h:74
MSCFModel_IDM & operator=(const MSCFModel_IDM &s)
Invalidated assignment operator.
const double myAdaptationTime
The IDMM adaptation time tau.
double levelOfService
state variable for remembering speed deviation history (lambda)
double _v(const MSVehicle *const veh, const double gap2pred, const double mySpeed, const double predSpeed, const double desSpeed, const bool respectMinGap=true) const
const double myTwoSqrtAccelDecel
A computational shortcut.
double stopSpeed(const MSVehicle *const veh, const double speed, double gap2pred) const
Computes the vehicle&#39;s safe speed for approaching a non-moving obstacle (no dawdling) ...
const int myIterations
The number of iterations in speed calculations.
int getModelID() const
Returns the model&#39;s name.
VehicleVariables * createVehicleVariables() const
Returns model specific values which are stored inside a vehicle and must be used with casting...