The random disturbance parameter γ is introduced into the cellular automaton (CA) model of traffic flow to simulate the cases of car-stopping, hitting the car ahead, and other vehicular crashes occurring on the freeway. By analyzing the disturbance vehicles in the driving environment of different visibilities of foggy weather, the correlations of limited speed and the safe spacing for optimum visibility are developed. The safe spacing and average safe velocity of the vehicle under different visibilities are simulated and analyzed, thus providing the theoretical gist for freeway administrative departments to establish and implement the management strategies.
Safe Spacing Research Based on the Theory of Cellular Automation on Freeways in Foggy Weather
Ninth International Conference of Chinese Transportation Professionals (ICCTP) ; 2009 ; Harbin, China
ICCTP 2009 ; 1-8
2009-07-23
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Safe Spacing Research Based on the Theory of Cellular Automation on Freeways in Foggy Weather
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