Journal
PHYSICS LETTERS A
Volume 375, Issue 10, Pages 1319-1322Publisher
ELSEVIER
DOI: 10.1016/j.physleta.2011.02.002
Keywords
Vehicular dynamics; Self-driven many-particle system; Collision; Safety; Dynamical transition
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We study the traffic behavior when a vehicle changes from the first lane to the second lane on a two-lane highway. We apply the optimal velocity model to the vehicular motion. If the incoming vehicle does not decelerate successfully, it crashes into the vehicle ahead. On the other hand, if the headway between the incoming vehicle and the vehicle behind on the second lane is not long sufficiently, the rear vehicle may come into collision with the incoming vehicle. The safety-collision transition occurs by changing the lane. The dynamical transition depends highly on the vehicular speed, the sensitivity, and the headway. We derive the phase diagram (or region map) for the safety-collision transition. (C) 2011 Elsevier B.V. All rights reserved.
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