Tamás Tettamanti, Tamás Luspay, István Varga

Road Traffic Modeling and Simulation

Tutorial

Time-domain signals

In order to simulate a dynamical system without using SIMULINK one has to specify an input signal, which, in our case, will be similar to the one illustrated in Figure 2.2. First define the simulation time horizon with the initial and final values (0 and tfinal=100 respectively), along with a step size dt=0.1. This is equivalent with a finite time grid, on which the solution of the corresponding set of delayed differential equations will be computed. At each time instance the leading vehicle’s acceleration a_lead is needed as an input. This acceleration profile is characterized by a braking part between t0=20 sec and t1=25 sec and an accelerating part between t1=25 sec and t2=30 sec. From this acceleration then we can simply construct the corresponding speed and position profiles, by using the following finite difference approximation:

Tartalomjegyzék

Kiadó: Akadémiai Kiadó

Online megjelenés éve: 2019

ISBN: 978 963 454 295 7

Műszaki tudományok BME KJK könyvek

On the one hand, the workbook serves the English Master Program of Autonomous Vehicle Control Engineer at the Faculty of Transportation Engineering and Vehicle Engineering of Budapest University of Technology and Economics. The exercises provide basic tutorial training supporting the course of Road Traffic Modeling and Control. On the other hand, the traffic modeling and simulation basics given in this book also lay the groundwork for practical and theoretical contributions in the field of intelligent traffic systems and traffic control.

Hivatkozás: https://mersz.hu/tettamanti-luspay-varga-road-traffic-modeling-and-simulation//

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