Study On Influence Of Straight Line Bus Stations On Intersection Efficiency

With the rapid development of urban traffic and increasing demand for traffic,signalized intersections are often over-saturated,and even traffic congestion occurs.For bus stops located near signalized intersections,unreasonable settings will increase the congestion in the road area around the intersection and vehicle delays,and seriously affect the operating efficiency of the entire urban transportation network.In order to explore the impact of the bus stops set near the intersection on the efficiency of the intersection traffic flow,this paper is based on the cellular automata model of traffic flow,taking the linear bus station as the research object,and first establishes the influence of the linear bus station downstream of the intersection The multi-lane motor vehicle traffic flow model is introduced,and the non-motor vehicle operation rules are introduced to construct the machine-non-mixed traffic flow model affected by the downstream bus station.Finally,the intersection operation rules are introduced,and Python programming simulation is used to analyze the different setting methods of bus stops.Impact on vehicle operation at intersections.It can provide a basis for the establishment of bus stops near the intersection and the improvement of traffic flow.The specific content includes the following aspects:(1)According to the driving characteristics of buses near the linear bus station,the road is divided into multiple sections.Based on the traditional cellular automata model of traffic flow,according to the driving characteristics of vehicles in different sections,the roads are formulated for cars and buses.Operating rules and lane changing rules,establish a multi-lane vehicle flow model under the influence of a linear bus stop.Through Python software programming,the simulation obtains the time-space map of vehicle driving under specific road traffic conditions,and analyzes the impact of traffic density,bus ratio and number of bus stops on road traffic under the model.(2)Based on the motor vehicle traffic flow model,a multi-value cellular automaton model is introduced to establish a machine-non-mixed traffic flow model under the influence of downstream linear bus stops.Through simulation,the mutual influence of non-motor vehicle flow and motor vehicle flow is obtained.(3)On the basis of the mixed traffic flow model,the intersection vehicle operation rules are introduced,and the traffic investigation and case analysis are carried out at the West Bus Station of Hang tian Avenue.The traffic flow and bus stop time of the bus stop are sorted out through statistics.The established model is used for simulation to analyze the influence of bus stop on the traffic flow of intersection and the best setting form of bus stop under different road conditions.