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为了制定安全高效的应急疏散预案,分析了SCOOT和BOTTLENECK算法的适应性,提出一种基于路口和路段入口综合控制的优化算法。新算法利用SCOOT算法对路口进行信号协调控制,利用BOTTLENECK算法对路段入口交通进行汇入控制,并通过严格控制延误目标将两种算法进行优化整合,确保主要疏散方向上的优先通行权,同时减少汇入交通对疏散车辆的干扰和延误,从而最大限度挖掘路网在应急状态下的疏散通行能力。仿真结果表明:在应急疏散交通条件下采用优化算法,能够将疏散车辆平均行程时间缩短近60%,平均速度提高约1.5倍,因此,提高了应急疏散效率,算法可行。
In order to make a safe and efficient emergency evacuation plan, the adaptability of SCOOT and BOTTLENECK is analyzed and an optimization algorithm based on comprehensive control of intersections and road sections is proposed. The new algorithm uses SCOOT algorithm to control signals at intersections, uses BOTTLENECK algorithm to control the entrance traffic of road sections, and optimizes and integrates the two algorithms through strict control of delay targets to ensure priority access in the main evacuation direction and reduce Import traffic into the evacuation of vehicles interfered and delayed, so as to maximize the evacuation of the road network in emergency response capacity. The simulation results show that the optimized algorithm can reduce the average travel time of evacuation vehicles by nearly 60% and increase the average speed by about 1.5 times under the conditions of emergency evacuation traffic. Therefore, the evacuation efficiency is improved and the algorithm is feasible.