The S-train system: Synchronized express &amp;amp; local trains for urban commuter rail systems

Chun, Joong H.; Anderson, Rodney M.; Paik, Daehyun

doi:10.1109/itsc.2011.6082944

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Therefore, the choice of overtaking points is critical for express and slow trains. Chun et al [21] studied urban commuter lines and pointed out that express trains should be synchronized with ordinary trains to improve the system to minimize travel time and station transfer delays. Hao et al [22] studied the express and slow train operation scheme, established a multi-objective optimization model based on travel time and operating cost and conducted an empirical study on the Shenzhen Metro Line 14.…”

Section: Related Workmentioning

confidence: 99%

Public Norms in the Operation Scheme of Urban Rail Transit Express Trains: The Case of the Beijing Changping Line

et al. 2021

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The development of urban rail transit is of great significance to the sustainable development of cities. However, the formulation of public norms of the urban rail transit train operation scheme lacks the corresponding theoretical support, rationality and scientificity. Therefore, based on the research on passenger flow conditions, this paper establishes an optimization model of express train operation and uses a heuristic genetic algorithm to solve it. In addition, this paper takes the Beijing Changping Line as an example to conduct empirical research. Results show that the optimization model established reduces the operation cost of operating enterprises, improves the capacity of urban rail transit, reduces travel time and maintains the full load rate of trains at a more comfortable level. This will improve the attractiveness of urban rail transit and promote benign interaction between operators and passengers. It will also provide a theoretical basis for formulating public norms of transit train operation, make it more scientific and reasonable and promote the development of urban rail transit.

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Section: Related Workmentioning

confidence: 99%

Public Norms in the Operation Scheme of Urban Rail Transit Express Trains: The Case of the Beijing Changping Line

et al. 2021

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“…It is crucial to determine which stations to stop at or skip in express/local services. Chun et al [4] proposed a synchronized express and local system implemented to optimize the urban transit system by reducing passengers' waiting times and transfers. Gao et al [1] analyzed the relationship between the energy consumption and passenger waiting time in the operation of express and local services and formulated a biobjective model.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimal Operation Scheme with Short-Turn, Express, and Local Services in an Urban Rail Transit Line

Feng

Tao

2020

Journal of Advanced Transportation

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Flexible railway operation modes combining different operation strategies, such as short-turn, express, and local services, can significantly reduce operator and user costs and increase the efficiency and attractiveness of rail transit services. It is therefore necessary to develop optimization models to find optimal combinations of operation strategies for urban rail transit lines. In this paper, a model is proposed for solving the urban rail transit operation scheme problem. The model considers short-turn, express, and local services with the aim of minimizing the operator’s and users’ costs. The problem is first decomposed into two subproblems: the service route design problem and the passenger assignment problem. Then, a mixed-integer nonlinear program (MINLP) model is formulated, and linearization techniques are utilized to transform the MINLP model into a mixed-integer linear programming (MILP) model that can be easily solved by commercial optimization solvers. To accelerate the solution process, a heuristic search algorithm is proposed to obtain (nearly) optimal solutions based on the characteristics of the model. The two subproblems are solved iteratively to improve the quality of solutions. A real-life case study in Chengdu, China, is performed to demonstrate the effectiveness and efficiency of the proposed model and algorithm.

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“…Hassannayebi E et al [5] studied the optimal time table of express/local train and built up a model in order to reduce the passenger waiting time by using variance and penalty function. Chun J H et al [6] come up with the express/local train mode, which can solve the problem of passenger crowding and train delay with building the model of minimizing the number of serviceable cars. Y Lai et al [7] took transfer passengers into account and then established an innovative network structure to study the train stop plan.…”

Section: Introductionmentioning

confidence: 99%

Stop Plan of Express and Local Train for Regional Rail Transit Line

Luo

Hou

et al. 2018

Journal of Advanced Transportation

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The urban rail transit line operating in the express and local train mode can solve the problem of disequilibrium passenger flow and space and meet the rapid arrival demand of long-distance passengers. In this paper, the Logit model is used to analyze the behavior of passengers choosing trains by considering the sensitivity of travel time and travel distance. Then, based on the composition of passenger travel time, an integer programming model for train stop scheme, aimed at minimizing the total passenger travel time, is proposed. Finally, combined with a certain regional rail line in Shenzhen, the plan is solved by genetic algorithm and evaluated through the time benefit, carrying capacity, and energy consumption efficiency. The simulation result shows that although the capacity is reduced by 6 trains, the optimized travel time per person is 10.34 min, and the energy consumption is saved by about 16%, which proves that the proposed model is efficient and feasible.

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The S-train system: Synchronized express & local trains for urban commuter rail systems

Cited by 3 publications

References 7 publications

Public Norms in the Operation Scheme of Urban Rail Transit Express Trains: The Case of the Beijing Changping Line

Public Norms in the Operation Scheme of Urban Rail Transit Express Trains: The Case of the Beijing Changping Line

Optimal Operation Scheme with Short-Turn, Express, and Local Services in an Urban Rail Transit Line

Stop Plan of Express and Local Train for Regional Rail Transit Line

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