نتایج جستجو برای: railway transportation planning

تعداد نتایج: 265217  

Journal: :Expert Syst. Appl. 2012
T. K. Ho Chi Wai Tsang Kwan Ho Ip K. S. Kwan

Railway timetabling is an important process in train service provision as it matches the transportation demand with the infrastructure capacity while customer satisfaction is also considered. It is a multi-objective optimisation problem, in which a feasible solution, rather than the optimal one, is usually taken in practice because of the time constraint. The quality of services may suffer as a...

2010
Michael Lodemann Norbert Luttenberger

Planning new railway infrastructures is a complex process. We present an approach where the formalization of expert knowledge regarding the railway domain is motivated in order to improve the planning process. By applying ontologies as a representation of railway related knowledge we are able to make the coherencies of infrastructural elements explicit. Furthermore the integration of an ontolog...

2008
Yu Yan

The market share of railway transportation is in the downwards trend. In order to reverse this trend, the railway has taken a series of countermeasures which have resulted in obvious effects. 1.To set up the railway freight and passenger transport marketing system which can meet the requirement of market. 2.To make the railway transport enterprises operational mechanism be matched with market e...

2015
Marc A. Rosen Cornelia A. Bulucea Daniel C. Cismaru

Some aspects are illustrated of energy conversion processes during the operation of electric railway vehicles with traction induction motors, in order to support transport systems’ sustainability. Increasing efforts are being expended to enhance the sustainability of transportation technologies and systems. Since electric drive systems are used with variable voltage variable frequency (VVVF) in...

2011

recognized as a core element of urban development. They play an increasingly important role in alleviating problems such as road congestion and air pollution and new plans for high-speed intercity railway links are being initiated around the world. Progress is also being made on incorporating advanced information systems into stations and other parts of the railway network as a core aspect of t...

Journal: :بین المللی مهندسی صنایع و مدیریت تولید 0
amirsaman kheirkhah bu-ali sina university, faculty of engineering, industrial engineering department, hamedan, iran hassan zolfaghari bu-ali sina university, faculty of engineering, industrial engineering department, hamedan, iran

in this paper, a discrete event simulation model of iranian railway system is used for analyzing performance of the system in freight sector. the model analysis shows more sensitivity of the system on loading and unloading facilities than on number of wagons and locomotives. system optimization through simulation optimization technique, shows that more than 4% of all wagons available in the net...

2009
Julie Jespersen-Groth Daniel Potthoff Jens Clausen Dennis Huisman Leo G. Kroon Gábor Maróti Morten N. Nielsen

This paper deals with disruption management in passenger railway transportation. In the disruption management process, many actors belonging to different organizations play a role. In this paper we therefore describe the process itself and the roles of the different actors. Furthermore, we discuss the three main subproblems in railway disruption management: timetable adjustment, and rolling sto...

2015
Lu Tong Lei Nie Gen-Cai Guo Jin-mei Li

Study on search algorithm of passenger travel route in railway transport network is of great importance in evaluation on railway operation benefit. Based on features of large-scale network and railway passenger transportation organization, the paper firstly innovatively puts forward the generation method of alternative route set in multiple constraint conditions. K short routes is proposed base...

2016
Stéphane Perron Céline Plante Martina S. Ragettli David J. Kaiser Sophie Goudreau Audrey Smargiassi

The objective of our study was to measure the impact of transportation-related noise and total environmental noise on sleep disturbance for the residents of Montreal, Canada. A telephone-based survey on noise-related sleep disturbance among 4336 persons aged 18 years and over was conducted. LNight for each study participant was estimated using a land use regression (LUR) model. Distance of the ...

2009
Miguel A. Salido Federico Barber

Train scheduling has been a significant issue in the railway industry. Over the last few years, numerous approaches and tools have been developed to compute railway scheduling. In this paper, we present a set of heuristics for a constraint-based train scheduling tool, which is a project in collaboration with the National Network of Spanish Railways RENFE , Spain. We formulate train scheduling a...

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