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Point processes arising in vehicular traffic flow

Published online by Cambridge University Press:  14 July 2016

Edward A. Brill*
Affiliation:
Naval Postgraduate School, Monterey, California

Extract

In this paper we investigate the properties of stationary point processes motivated by the following traffic model. Suppose there is a dichotomy of slow and fast points (cars) on a road with limited overtaking. It is assumed that fast points are delayed behind (or are clustered at) a slow point in accordance with the principles of a GI/G/s queue, the order of service being irrelevant. Thus each slow point represents a service station, with the input into each station consisting of a fixed (but random) displacement of the output of the previous queueing station. It is found that tractable results for stationary point processes occur for the cases M/M/s (s = 1, 2, ···, ∞) and M/G/∞. In particular, it is found that for these cases the steady state point processes are compound Poisson and that for the M/M/1 case the successive headways form a two state Markov renewal process. In addition it is shown that the input, output, and queue size processes in a steady state M/G/∞ queue are independent at any fixed time; this is a result I have been unable to find in the literature.

Type
Short Communications
Copyright
Copyright © Applied Probability Trust 1971 

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References

[1] Breiman, L. (1968) Point and trajectory processes in one-way traffic flow. System Development Corporation Document TM-3858/006/00.Google Scholar
[2] Brill, E. A. (1971) A model of a traffic jam behind a bottleneck. Submitted for publication.Google Scholar
[3] Brown, M. (1969) Some results on a traffic model of Rényi. J. Appl. Prob. 6, 293301.Google Scholar
[4] Doob, J. L. (1953) Stochastic Processes. Wiley, New York.Google Scholar
[5] Karlin, S. (1966) A First Course in Stochastic Processes. Academic Press, New York and London.Google Scholar
[6] Miller, A. J. (1961) A queueing model for road traffic flow, J. R. Statist. Soc. B 23, 6475.Google Scholar
[7] Newell, G. F. (1966) Equilibrium probability distributions for low density highway traffic. J. Appl. Prob. 3, 247260.Google Scholar
[8] Reich, E. (1957) Waiting times when queues are in tandem. Ann. Math. Statist. 28, 768773.Google Scholar
[9] Renyi, A. (1964) On two mathematical models of the traffic on a divided highway. J. Appl. Prob. 1, 311320.Google Scholar
[10] Ross, S. (1969) Applied Probability Models with Optimization Applications. Holden-Day, San Francisco.Google Scholar
[11] Tanner, J. C. (1961) Delays on a two-lane road. J. R. Statist. Soc. B 23, 3863.Google Scholar