Multiple-vehicle collision induced by a sudden stop in traffic flow
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...
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| Veröffentlicht in: | Physics letters. A 2012-04, Vol.376 (22), p.1803-1806 |
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| container_title | Physics letters. A |
| container_volume | 376 |
| creator | Sugiyama, Naoki Nagatani, Takashi |
| description | 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)→∞ if Δxi(t)→0 where vi(t) and 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. |
| doi_str_mv | 10.1016/j.physleta.2012.04.024 |
| format | Article |
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| ispartof | Physics letters. A, 2012-04, Vol.376 (22), p.1803-1806 |
| issn | 0375-9601 1873-2429 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Collision Collision dynamics Dynamic tests Headways Phase diagrams Plugs Safety Self-driven many-particle system Solid state physics Traffic flow Vehicles Vehicular dynamics |
| title | Multiple-vehicle collision induced by a sudden stop in traffic flow |
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