Abstract A simple stochastic model for freeway traffic is formulated as follows: each vehicle passing a fixed point in a given lane is assigned as F (follower) or L (leader) with probabilities p, 1 − p. Each car is assigned an independent headway drawn from either a leader or follower distribution. A L vehicle draws its speed from a normal distribution whose mean is the time mean speed. But a F vehicle draws speed from a normal distribution whose mean is equal to the speed of the car ahead of it. Using only two adjustable parameters, the model shows surprisingly good agreement with the statistical properties of freeway traffic over a large range of flow rates as reported in Breiman et al. (1976).
A simple stochastic model for freeway traffic
1976-02-12
6 pages
Article (Journal)
Electronic Resource
English
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