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考虑到原始细胞传输模型(CTM)在处理多细胞汇合、分岔以及多对细胞流线间交叉等情形时存在明显的局限性,通过分析细胞间车流流线关系来反映多种不同细胞连接结构,提出一种新的基于细胞阶段传输车流量累计模拟方法 (简记ASCF-TS),不仅满足了细胞内车流的FIFO规则和细胞输送车流能力约束,同时也能满足流线交叉点的车流输送能力约束,有效处理车流流线交叉产生的优先权问题,增强了CTM模型的适用性。最后的数值算例结果表明,所提出的ASCF-TS车流模拟方法能有效处理多细胞汇合、分岔情形,且相比较于原始CTM模型,能模拟出车流在交叉口流线交叉的滞后影响,方法具有较强的时间有效性。
Considering the obvious limitations of CTM in dealing with multi-cell confluence, bifurcation and cross-flow between multiple pairs of cells, it is possible to reflect the relationship between many different cell junctions (ASCF-TS), which not only satisfies the FIFO rules of intracellular traffic and the constraints of cell transport traffic flow, but also meets the traffic flow transport at the intersection of streamlines Ability constraints, effectively deal with the priority issues arising from the intersection of traffic flow lines and enhance the applicability of the CTM model. The numerical results show that the proposed ASCF-TS traffic simulation method can effectively deal with the multi-cell convergence and bifurcation. Compared with the original CTM model, the lag effect of traffic stream intersection at the intersection can be simulated. The method has strong temporal validity.