Study On The Design Of Urban BRT Lanes And Stations

With the growth of economic forces of our country, urban public transport development has made tremendous progress. In recent years, in order to ease traffic congestion and to meet the needs of urban residents to improve public transport services, more and more cities began to plan and construct BRT systems. However, as the two important parts of the BRT system, the actual planning and construction conditions of BRT lanes and the sites were not standardized. Many cities operating BRT systems had a lot of problems such as the lane type not matching the actual road conditions, low utilization of the lanes, the sites design was not standardized and the subjectivity was too strong when setting the distance between BRT stations. These problems not only seriously affected the operational efficiency of the BRT system, but also exacerbated the travel congestion of other social vehicles. Urban residents also had a travelling problem due to these phenomenon. Thus an analysis to the BRT lanes and sites has an important practical significance.Firstly, the paper gives a brief exposition of the basic content and composition of the BRT systems. Secondly, the paper discusses the factors affecting the settings of BRT lanes. In view of the chaos phenomenon of the setting styles, we put the BRT lanes into five types including centralized lanes, roadside lanes and so on. This paper analyzes the applicability and the features of various types of lanes which provides a reference for lane type selection. Thirdly, the paper puts forward a method of intermittent right of road in separated sections by the means of GPS technique to improve the utilization of BRT lanes. Then the paper analyzes the efficiency of the BRT lanes by two indicators which is the average travel time and the passenger traffic capacity. Next, the paper designs the scale of BRT stations through mathematical formulas. Finally, the paper establishes a station spacing optimization model based on the smallest total cost to obtain a most reasonable average station spacing and it provides a scientific and reliable theoretical basis in the aspects of setting station spacing.