京津冀交通一体化之天津地铁线路优化
Tianjin Metro Optimization of “Beijing-Tianjin-Hebei Traffic Integration”

在国家“京津冀”一体化的战略背景下，特殊地区需要建立地铁直达专线来缩短两地来往时间，以便构建更加快捷高效的交通网。天津作为京津冀协同发展中的重要环节之一，我们选定天津现有的地铁线路作为代表性的研究对象。本文基于层次分析法构建这个模型，选取了六个方面的指标并接着通过计算得到综合直接和间接影响的站点辐射范围，以优化车站选择；最后，得到一些备选地铁站点。与此同时，比较建造新站的可操作性和调整列车不同发车时间间隔的成本，最后得到了最终优化的发车时刻安排表。
Under the strategic background of the national “Beijing-Tianjin-Hebei” integration, special subway lines need to be established in special areas to shorten the travel time between the two places, in order to build a fast and efficient transportation network. As one of the important links in the coordinated development of Beijing, Tianjin and Hebei, we choose the existing subway lines in Tianjin as the representative object of study. In this paper, based on the analytic hierarchy process to build this model, the paper selects six aspects of the description and then through the calculation to get the comprehensive direct and indirect impact of the station radiation range, in order to optimize the station selection; finally, get some alternative subway stations. At the same time, the maneuverability of building the new station and the cost of adjusting the train departure time in-terval are compared, and the final optimized departure time schedule is obtained.