Study And Realization Of Urban Rail Transit Train Working Diagram In A Skip-Stop Operation Mode

More and more cities begin to construct rail transit lines connecting the main city and surrounding areas. This kind of urban rail transit lines has the characteristics of long distance and unbalanced passenger flow. Using an operation mode combined with all-stop train and skip-stop train can effectively improve the operational efficiency of urban rail transit.This paper summarizes and improves current algorithm of train working diagram under a traditional operation mode and proposes an algorithm of train working diagram computerization based on the method of hand-drawn train working diagram under a skip-stop operation mode.This paper mainly discusses the following issues.(1) Made a deep study of some key problems in the designing of train working diagram. Summarized the influence of different train route which made on train’s initial arrangement, turn-back mode and into/coming out from the depot in the designing of train working diagram.(2) Introduced a method of determining and transforming of the overtaking between all-stop train and skip-stop train.(3) Made an all-day train working diagram by the method of sub-period processing. Independently deal with each time block according to the route plan, finally combined each time block into an all-day train working diagram.(4) Modularized processing of the express-slow time block. Made the express-slow train block to meet the requirements of train turn-back, train running interval and over-taking organization.(5) Proposed an algorithm of train working diagram designing which had a particular express/slow ratio. Several problems had been studied deeply in the designing of train working diagram, such as multiple times over-taking, initial arrangement and express/slow train arrangement and combination.At last, the author uses Chengdu line 18 as an example, according to the principles and algorithms presented in this thesis, a train working diagram is generated by the actual data of Chengdu line 18. The validity and feasibility of the algorithm proposed by this thesis have been verified.