关键词: 城市交通, 阻挡概率, 混合元胞自动机, 人非共板, 服务水平

Abstract: Study on the pedestrian-bicycle mixed traffic on the shared-use sidewalks beside to the street, with developing a multi-scale and multi-neighborhood-rule cellular automaton model. The shared-use sidewalk is a novel mode of non-motorized traffic management, but there is lack of theoretical support to select the plan and design parameters, lack of a quantitative method to evaluate the traffic flow state of shared-use sidewalks. The study’s object is the synclastic mixed pedestrian and bicycle traffic on a single shared-use sidewalk of urban street. A unified mixed traffic flow cellular automaton model is established based on the difference of the geometric dimensions, status value and neighborhood definition of bicycle-cell and pedestrian-cell. This model describes nicely the interference of bike and pedestrian. It is convenient to obtain evaluation parameters of traffic flow status like as hindrance probability, to provide a reliable theoretical basis as planning and designing the shared-use sidewalk.

Key words: urban traffic, hindrance probability, mixed cellular automaton, shared-use sidewalk, level of service