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以一维非对称换道元胞自动机(CA)模型为基础,考虑公交车辆换道行为特性与社会车辆换道受公交影响等因素,针对无公交专用道的城市交叉口上游进口道建立了多车道混合车辆元胞自动机模型,并进行局部仿真建模。在定时信号控制条件下,比较周期内进口道的交通流运行特征,剖析进口道的时空关系图。通过分析发现,公交比例以及换道概率对进口道上拥堵段的分布及变化均有显著的影响。
Based on the one-dimensional asymmetric lane-changing cellular automata (CA) model, taking into account the lane changing behavior of public transport vehicles and the social vehicle lane change affected by public transport, the upstream entrance road of urban intersections without bus lanes is established Multi-lane hybrid vehicle cellular automaton model, and local simulation modeling. Under the control of the timing signal, the traffic flow characteristics of the inlet passage are compared during the period, and the spatio-temporal relation diagram of the inlet passage is analyzed. Through the analysis, it is found that the proportion of buses and the probability of lane change have a significant impact on the distribution and changes of congestion segments on the inlet road.