کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1862554 | 1037594 | 2012 | 4 صفحه PDF | دانلود رایگان |
We study the dynamic process of the multiple-vehicle collision when a vehicle stops suddenly in a traffic flow. We apply the optimal-velocity model to the vehicular motion. If a vehicle does not decelerate successfully, it crashes into the vehicle ahead with a residual speed. The collision criterion is presented by vi(t)/Δxi(t)→∞vi(t)/Δxi(t)→∞ if Δxi(t)→0Δxi(t)→0 where vi(t)vi(t) and Δxi(t)Δxi(t) are the speed and headway of vehicle i at time t. The number of crumpled vehicles depends on the initial velocity, the sensitivity, and the initial headway. We derive the region map (or phase diagram) for the multiple-vehicle collision.
► We studied the dynamic process of the multiple-vehicle collision in traffic flow.
► We presented the collision criterion that a vehicle comes into collision with the vehicle in front.
► We clarified the dependence of the multiple-vehicle collision on the density and sensitivity.
Journal: Physics Letters A - Volume 376, Issue 22, 30 April 2012, Pages 1803–1806