Roads and Bridges - Drogi i Mosty
16, 3, 2017, 163-176

The effect of distances between vehicles on time and speed in simulated traffic flow

Joanna A. Kamińska Mail
Wrocław University of Environmental and Life Sciences, The Faculty of Environmental Engineering and Geodesy, Department of Mathematics. 53 Grunwaldzka Street, 50-357 Wrocław
Mieczysław Chalfen Mail
Wrocław University of Environmental and Life Sciences, The Faculty of Environmental Engineering and Geodesy, Department of Mathematics. 53 Grunwaldzka Street, 50-357 Wrocław
Published: 2017-09-30

Abstract

The paper presents an analytical derivation of the dependence between vehicle speed and traffic density in urban traffic conditions. It was shown that the speed function is hyperbolic and depends on the density of traffic flow, the average vehicle length and the value of expected distances between vehicles E(T) expressed in time units. A number of computer simulations were performed on the basis of a defined relationship in order to study the effect of the E(T) value on the parameters of simulated traffic flow. The average speed and time of traveling the route from the starting point to the destination were tested in the conducted simulations. It was proved that the change in the E(T) parameter in a range between 1 s to 4 s results in a change in the average travel time from 6.6% to 35.6% and a change in average speed from 3.0% to 18.0%, depending on the number of vehicles in the simulation.

Keywords


computer simulation, distance between vehicles, traffic flow modeling, travel time

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References


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The effect of distances between vehicles on time and speed in simulated traffic flow

  
Kamińska, Joanna A.; Chalfen, Mieczysław. The effect of distances between vehicles on time and speed in simulated traffic flow. Roads and Bridges - Drogi i Mosty, [S.l.], v. 16, n. 3, p. 163-176, sep. 2017. ISSN 2449-769X. Available at: <>. Date accessed: 03 Apr. 2020. doi:http://dx.doi.org/10.7409/rabdim.017.011.