摘要
为了提高公交与轨道交通的接驳效率,提出了一种轨道交通共线的公交线路优化模型.采用连续近似的方法,以系统成本最小化为目标,实现了公交站点位置及发车频率同步优化.根据最优条件,获取模型的解析解,并设计了相应的迭代求解算法,通过积分将站点密度转化为具体的站点位置.为评价模型的应用效果,将其应用于重庆轨道交通3#线路及共线公交线路,对现有的公交线路服务进行优化设计.结果表明,相比现有的公交线路服务,采用所提方法优化后的公交线路服务的系统成本减少了27.14%,说明该方法可为轨道交通共线的公交线路优化提供决策支撑.
To improve the efficiency of the connection between conventional buses and rail transit,an optimization model for bus line overlapping with rail was proposed.With the aim of minimizing the system cost,the bus stop location and the frequency were optimized simultaneously by the continuous approximation method.The analytical solution of the model was obtained according to the optimal conditions,and the corresponding iterative solution algorithm was designed.The stop density was converted into the specific stop location by integration.To evaluate the application effect of the model,it was applied to Chongqing Rail Transit Line 3#and the bus lines overlapping with rail,and the existing bus line service was optimized.The results show that the cost of the bus line service optimized by the proposed method is decreased by 27.14%compared with that of the existing bus line service,indicating that this method can provide the decision support for the service optimization of bus lines overlapping with rail.
作者
刘媛
罗孝羚
Liu Yuan;Luo Xiaoling(School of Traffic and Transportation,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing Key Laboratory of Trafficand Transportation,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2022年第4期780-786,共7页
Journal of Southeast University：Natural Science Edition
基金
重庆市教委科学技术研究计划青年资助项目(KJQN202100714).
关键词
轨道交通
城市公交
公交线路优化
连续近似
rail transit
urban bus
bus line optimization
continuous approximation
