نتایج جستجو برای: rail waycargo train scheduling

تعداد نتایج: 119151  

ژورنال: Journal of Railway Research 2021
Adoh, Lucky Ugochukwu, Tesfaye , Samuel,

The rail track is one of the most important elements of a railway system. During the passage of trains, the rails are subjected to contact load that comes from the wheels of the train.  The railway track often fails in service due to wear caused by contact fatigue and other wear damage mechanisms that could also limit the life span of the railway infrastructure and railway vehicle. The aim of t...

2010
Robert Leachman

In the United States, railways are the major means to trans-continentally move goods from ports to the various inland destinations. Due to mergers and abandonment of rail lines, there has been a reduction in the track capacity, concentrating rail traffic to fewer lines. In addition to this, booming trade with Pacific Rim nations has seen the annual trade in the Ports of Los Angeles and Long Bea...

A generation method for the rail random irregularity with arbitrary wavelength interval (WI) is developed, and its accuracy and efficiency are demonstrated. Then a moving wheel-rail-bridge interaction element is derived to establish the finite element equations of motion for the train-rail-bridge interaction system, and the flow chart of assembly and calculation for the system equations is give...

2013
Vincent A.C. van den Berg Erik T. Verhoef

We analyse congestion pricing in a road and rail network, where the two modes are imperfect substitutes. On the road there is bottleneck congestion; in each train there is crowding congestion. We model two dimensions of preference heterogeneity; these two dimensions have opposite effects on the welfare impact of congestion pricing and lead to different distributional effects. The distributional...

Journal: :Decision Support Systems 2012
Erhan Kozan Shi Qiang Liu

In this paper, a demand-responsive decision support system is proposed by integrating the operations of coal shipment, coal stockpiles and coal railing within a whole system. A generic and flexible scheduling optimisation methodology is developed to identify, represent, model, solve and analyse the coal transport problem in a standard and convenient way. As a result, the integrated train-stockp...

2000
Samer S. Saab

This paper is devoted to the development of a map matching algorithm for a train positioning system. Due to the nonsteerable truck design associated with rail vehicles, rail track curvatures are reasonably small. Consequently, track signatures, such as curves, are difficult to identify using low-cost sensors. The algorithm proposed in this work takes full advantage of the inherited “one-dimensi...

2010
R. Takagi P. F. Weston C. J. Goodman C. Bouch J. Armstrong J. Preston S. Sone

On a main line railway network with many junctions, the delay of a train is likely to cause delays to many other trains, especially because of conflicts at junctions. Optimising one junction, however, may have an adverse effect on other parts of the rail network because of the mixed-traffic situation of most main line railways. To approach the complicated problem of optimal re-scheduling in res...

2016

In this project, we explore a data-­‐driven approach for monitoring rail infrastructure from the dynamic response of a train in revenue-­‐service. Presently, rail inspection is performed either visually or with dedicated track geometry cars. We examine a more economical approach where ...

2011
Vincent van den Berg Erik T. Verhoef

We analyse congestion pricing in a road and rail network, where the two modes are imperfect substitutes. On the road there is bottleneck congestion; in each train there is crowding congestion. We model two dimensions of preference heterogeneity, where these two dimensions have opposite effects on the welfare impact of congestion pricing and lead to different distributional effects. The distribu...

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