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大力发展轨道交通成为我国大城市解决城市交通拥挤问题的重要手段之一,然而轨道交通出现后,如何与常规公交协调发展则成为我国城市公共交通规划面临的新问题。针对沿轨道交通线路平行或重复的常规公交线路的优化问题,基于出行人的均匀分布假设和总的出行时间最小化目标,建立了最优站点数量模型。研究表明,公交站点之间按相同平均距设置时,使得选择轨道交通或者常规公交的乘客所花费的总时间最少的最优公交站数目是步行速度与常规公交运行速度的函数。
Vigorously developing rail transit has become one of the most important means to solve the problem of urban traffic congestion in metropolitan cities in China. However, how to coordinate with conventional public transport has become a new problem in urban public transport planning in our country after the emergence of rail transit. In order to solve the problem of the optimization of the regular bus lines parallel or repeated along the rail transit lines, an optimal number of stations model is established based on the uniform distribution assumption of the passengers and the total travel time minimization target. The research shows that the optimal number of bus stations which make the total time spent by passengers who choose rail transit or regular bus when bus stations are set at the same average distance is a function of walking speed and conventional bus running speed.