Research On Capacity Of Bus Rapid Transit Lane And Optimization Of Route Adjusting

As a low-cost, short implementation cycle mass transit mode, Bus Rapid Transit system has been widely applied in many cities at home and abroad, and it plays an important role in solving urban traffic congestion.Firstly, the development of bus rapid transit at home and abroad is introduced, with the analysis of Curitiba, Brazil; Canada, Ottawa and other foreign cities, and also the status of the development of Beijing Bus Rapid Transit. Bus rapid transit study at home and abroad is also analyzed and summarized.Secondly, introduce the basic concepts of bus rapid transit system and analyze the advantages and disadvantages of Bus Rapid Transit system.Passenger number, road grade, traffic volume, lane width, and efficiency of bus rapid transit system conditions were studied.Then introduce the bus rapid transit lane capatity with the aspects of intersection and bus stops, the capacity of bus stop is analyzed in detail. The capacity of bus stop is restricted by vehicles stop time at the station,the geometric design of the station, the change of residence time and the operating organizations. At present, many countries and regions do the capacity calculation based on the United States TCRP formula or formula of Rapid Transit in Brazil. In this paper, the TCRP model was improved, taking into account the impact of the distance between the intersections and vehicle delay at the stop on traffic capacity calculation.Next, propose the method of dedicated bus rapid transit lines layout optimization. According to the characteristic of large capacity, fast and stable, the saturation of bus stop and average travel speed as key indicator goal, by defining the concept of priority of bus rapid lines, analyze with the TransModeler traffic simulation software, propose a method of bus papid transit lines adjusting and optimization under given levels of services.At last, with the introduction of Guangzhou Bus Rapid Transit system operating practice, the optimization of bus rapid transit line layout method is put into practice.