基于服务人口最大化的快速公交线路规划

快速公交(BRT)在公共交通中，因其快捷、舒适和高运量的特点，以及建设周期 短、投资低和见效快的优势，受到越来越多城市的青睐.然而，如何合理布设BRT线路并 没有一个科学的理论方法.本文对BRT线路规划尝试建模，以站点服务人口最大为目标， 站点及路径须满足站距、费用、线路不重复，以及几何条件等约束.模型为单目标线性0-1 规划，采用枚举法求解模型，最终给出以不同备选站为起点的多条可选线路方案，并从中 选取最优方案.此外，本文还结合非直线系数这一指标对一定区域内BRT线路站点数量 设置进行了评价.本文提出的线路规划方法可为规划人员提供一个科学规划BRT线路的 思路和参考.

Planning Bus Rapid Transit Line Based on the Maximum Service Population Coverage

Bus rapid transit (BRT) has advantages in speed, comfort and capacity over conventional bus service and hence is chosen by more and more cities. However, the planning of BRT line is lack of a scientific approach and heavily relies on planner’s experience. This paper, aiming to develop a scientific model for BRT line planning, establishes a mathematical model with the objective of maximizing the service population, which is subjected to a number of constraints such as distance between stations, expense, etc. The problem is formulated as a single-objective linear integer programming model, and is solved with exhaustive attack method by selecting the best plan out of a group of feasible solutions. In addition, the BRT line and stop settings are further assessed with the factor of non-linear coefficient. It provides planners a scientific and robust method to improve the BRT line planning.