01472150

Component

To reduce the operational costs and to improve the operational efficiency, people are paying more and more attention to the energy-efficient operation of subway systems. In this paper, the authors present and compare two algorithms for determining the energy-efficient speed profile for trains of subway systems. Firstly, they formulate a mixed integer linear programming (MILP) model to get the optimal speed profile. Secondly, they present an integrated algorithm for optimizing the timetable for the entire route together with the speed profiles between successive stations, which is called integrated timetable. Finally, based on the data from the Beijing YiZhuang subway line, they give some numerical examples to illustrate the validity, and to compare the optimality of the algorithms. The results show that both algorithms can get a good performance in saving energy, but the MILP approach gives a better energy-efficient performance, and the integrated algorithm needs a shorter computation time.

This paper was sponsored by TRB committee AP010 Transit Management and Performance.

01470560

13-2451

English

0000-0002-5264-3775

12p

2013

Transportation Research Board 92nd Annual Meeting

Digital/other

Figures; References; Tables

Algorithms; Energy consumption; Operating speed; Optimization; Running time; Subways; Train operations

Beijing (China)

Energy; Operations and Traffic Management; Public Transportation; I15: Environment; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2013 Paper #13-2451

TRIS, TRB, ATRI

Feb 5 2013 12:31PM