Study On The Capacity And ETC Lane Configuration Of Expressway Toll Station

ETC technology as an important part of intelligent transportation system,the rapid development in recent years,the application in the toll station has gradually matured.The expressway toll station,which is composed of ETC and MTC,has become the development trend of the toll station in our country.It also reduces the delay time of the vehicle through the toll booth and improves the service level and improves the driver's ability to improve the traffic capacity Traffic conditions of expressway.This paper first introduces the development process of toll stations and ETC technology at home and abroad,as well as the research results of scholars in related fields,and determines the research purpose and research methods of the paper.According to the current situation of the toll station in our country,the toll station type is divided from different angles and the design parameters of the lane are counted.The paper analyzes the composition of the vehicle,the distribution of the arrival characteristics of the vehicle,the running status of the vehicles in each region,analyzes the influencing factors of the vehicle delay time and determines the calculation formula of the average delay time.Secondly,the relationship between the macroscopic parameters(traffic volume,velocity and density)and the influence on the steady traffic flow and the congested traffic flow are analyzed,and the influence of two microscopic parameters of the front distance and the headway distance on the mixed toll station The necessity of research.The research method of the traffic capacity can be divided into theoretical analysis method,measured test method and computer simulation method,and the advantages and disadvantages are discussed respectively.Based on the analysis of the braking process on the ETC lane,the calculation formula of the ETC single lane capacity is determined.The ETC multi-lane is determined by combining the ETC lane reduction factor and the four kinds of uncertain factors.According to the analysis of M / G / K queuing theory and the factors such as service time and departure time,the calculation formula of MTC lane capacity is determined,and the average number of queuing vehicles is calculated by numerical calculation.The influence of the maximum hour flow rate is summarized,and the calculation method of the total capacity of the mixed toll station under different proportion lane configuration is summarized.Finally,the traffic situation of the hybrid toll station is simulated by Vissim.The simulation results of the mixed capacity of the mixed toll stations are obtained by the simulation results of the ETC single lane capacity in different locations.The simulation results of the mixed toll stations are obtained under different lane numbers and three traffic conditions.The comparison between the theory and the simulation model,verify theconsistency between the two and the actual traffic flow,and analyze the change of the traffic capacity with the increase of the number of the ETC lanes.And the traffic capacity of 7 lane mixed toll stations is studied,and the optimal ETC lane number allocation scheme under different traffic volume and ETC usage rate is put forward.