关键词: 交通工程, 公交车, 停车站点, 站点相遇概率

Abstract: It is an important measure to improve the operation efficiency of the urban traffic system by coordinating the service capacities of bus stops and the parking demands of buses. Based on the bus routes, departure intervals of buses, sites of stops and the numbers of parking berths for buses at stops, this study analyzes the service reliabilities of bus stops in a whole city and proposes a formulas for calculating the service reliability of a bus stop, on the assumption that the travel time on the road segment and the stay time at bus stops of the bus obey probability distribution. The proposed formula can figure out the probability of multiple buses meeting at a stop in arbitrary time intervals, according to a new conception-α-reliability. It is concluded that the service reliability of a bus stop will be influenced not only by the changes of the bus routes, departure intervals of buses, site of the stop and the number of parking berths but also by the reliabilities of the travel time of buses in a road section and their stay time at the bus stop.

Key words: traffic engineering, bus system, bus stop, probability of encounter at the stop