Study On Lane Changing Behavior Of Buses At The Stop Based On Cellular Automata Modeling

In recent years,with the continuous acceleration of urbanization,the number of motor vehicles in every city has increased rapidly,and the the demand for urban traffic has become more and more serious.which makes urban road traffic pressure increasing day by day.Because of the traffic congestion,the time delays and economic losses caused by road jams are also increasing day by day.It is urgent to solve the problem of alleviating urban traffic congestion and improving road capacity.Conventional public transport is one of the effective measures to alleviate urban traffic congestion.Therefore,the development of urban public transportation is very important.As an important node in the public transport network,the traffic flow in the vicinity is more complicated,which not only has an impact on the efficiency of the bus operation,but also restricts the normal operation of the traffic flow in the nearby sections.Public transport vehicles need to stop at the bus stop to complete the service of boarding and disembarking passengers,therefore,it will intertwine with the social vehicles and temporarily occupy the road resources to form a traffic bottleneck.It is a complicated process of bus stopping,especially the lane-changing of the bus.Hence,the detailed analysis of the influence of the bus stop on the traffic flow of the road section can be more clearly understood.It is of great significance to relieve the traffic pressure and improve the traffic capacity of the section near the bus stop.First of all,this paper summarizes the domestic and foreign research results of bus stop and change model,establishes the theoretical foundation for the paper.Through the descriptions of the forms of bus stops,the microscopic process of bus stops,and the characteristics of bus arrival,the paper qualitatively analyzes the influencing factors of traffic flow on road sections.Based on the classification and description of the road changing behavior,the influencing factors of the vehicle changing behavior are analyzed qualitatively.Then,using the cellular automaton to construct the lane changing model of public transport vehicle to determine the regular road section and the rules of bus and social vehicles near the stop station.Through the MATLAB programming,the simulation of the lane changing model of the bus is realized,and the influence of the distance between the lane changing point and the length of the platform,the number of lane crossing lanes on the safety and efficiency of the traffic operation of the road section are analyzed.In the end,examples are analyzed,the validity of the model is verified by using the investigation data,and the traffic organization of the section near the bus stop is carried out according to the results of the study,so as to reduce the impact of the bus stopping on the traffic flow and improve the capacity of the road.