Self-Healing Networks - Gridlock Prevention with Capacity Regulating Traffic Lights
Self-Healing Networks - Gridlock Prevention with Capacity Regulating Traffic Lights
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DOI：
10.1109/sasow.2012.19
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发表时间：
2012-09
期刊：
影响因子：
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通讯作者：
S. Lämmer;M. Treiber
中科院分区：
文献类型：
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作者：
S. Lämmer;M. Treiber
道路网络的通行能力由其交叉口的绿灯时间预先确定。由于这些通常是针对预期的交通需求而设计的，自发的需求高峰或车道阻塞可能会导致拥堵蔓延到网络的较大部分。我们表明，可以通过容量调节交通灯控制来防止交通堵塞效应，该控制旨在避免严重的溢出并在剩余道路容量之间分配交通。这个想法是，交通灯所服务的车辆数量不会超过后续道路所能容纳的车辆数量。绿灯时间较短的过饱和路段的流入调节意味着剩余的转弯方向可以使用较长的绿灯时间。因此，网络中有缺陷的部分可以缓解一些交通压力，而周围道路的剩余容量则可以通过推广替代路线来提供。通过这种方式，绕行路线上交通的重新分配与绿灯时间的即时重新分配齐头并进。
The capacity of a road network is predetermined by the green times at its intersections. As these are typically designed for expected traffic demands, spontaneous demand peaks or lane blockings will likely lead to congestion spreading over larger parts of the network. We show that gridlock effects can be prevented by a capacity regulating traffic light control designed to avoid critical spill-backs and to distribute traffic among remaining road capacities. The idea is that traffic lights do not serve more vehicles than subsequent roads can accommodate. The regulation of inflow in over-saturated road segments with shorter green times implies that remaining turning directions can be served with longer green times. In consequence, defective parts of the network are relieved from some traffic, whereas remaining capacities on surrounding roads are made available by promoting alternative routes. In this way, a redistribution of traffic on bypass routes goes hand in hand with an instantaneous reallocation of green times.