|
With the development of human beings, the progress of the city, the need to travel has increasingly become a society is most concerned about the thorny problem. The same time, due to the unique climate characteristics of the cold city, leading to freezing in the winter snow, road adhesion coefficient is greatly reduced, vehicle tires and road friction coefficient smaller vehicle speed is severely reduce, delay time to increase significantly, and even appear traffic congestion and traffic accidents. Shows that public transport is bound to turn into the most important way to travel in the future people build a bus rapid transit system, especially in the winter city attention. The busway setting preliminary groundwork is to build a rapid transit system, bus priority to solve urban road conditions, traffic demand can not meet the most direct and effective way. In winter city, bus lanes set to become the key to ease the traffic pressure. In this paper, the research of the relevant literature, in Harbin, the sections of New Rd and New Rd Tongda Street intersection were observational experiment to get snow road to face a winter city traffic. With the increase in snowfall, the the roads running time of social vehicles and public transport vehicles, travel speed, saturation flow rate of the intersection of the import channel, distance and vehicle start losing time when the front aspects affecting the changes in value of the traffic the main factors . In addition, based on the actual traffic data and optimization, traffic simulation use VISSIM4.0 software. Adoption the traffic separation control, as well as stops set in sections lane, making more efficient vehicles and public transport vehicles during peak hours by winter city road capacity; superimposed signal phase, to optimize the signal at an intersection with methods to improve the intersection importing channel capacity, thus ensuring bus priority, and satisfy the travel needs of the people. Text by analyzing the sections before and after contrast optimization busway capacity, the capacity of the stops, as well as intersection busway import channel capacity to establish a model suitable for winter city bus lane capacity cold icy weather conditions of urban a comprehensive assessment of the capacity of the bus lane, and provides a scientific basis for future in-depth study of the winter city public transport system and build a rapid transit system.
|