Analytical results of asymmetric exclusion processes with ramps.
Analytical results of asymmetric exclusion processes with ramps.
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DOI：
10.1103/physreve.72.016102
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发表时间：
2005-07
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影响因子：
--
通讯作者：
Ding-wei Huang
中科院分区：
文献类型：
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作者：
Ding-wei Huang
我们在一个简单的交通模型中给出了分析结果，该模型描述了带有坡道的单车道公路。同时考虑了入口匝道和出口匝道。实现了对不同相的完整分类。得到了精确的相图。在单一匝道的情况下(无论是入口匝道还是出口匝道)，没有瓶颈效应。无法实现匝道前拥堵、匝道后畅通的通行条件。在两个连续坡道的情况下，当入口匝道位于出口匝道之前，并且匝道之间的流量饱和时，瓶颈出现。
We present the analytical results in a simple traffic model describing a single-lane highway with ramps. Both on-ramps and off-ramps are considered. Complete classification of distinct phases is achieved. Exact phase diagrams are derived. In the case of a single ramp (either on-ramp or off-ramp), the bottleneck effect is absent. The traffic conditions of congestion before the ramp and free-flowing after the ramp cannot be realized. In the case of two consecutive ramps, the bottleneck emerges when the on-ramp is placed before the off-ramp and the flow in between the ramps saturates.