نتایج جستجو برای: railway transportation
تعداد نتایج: 70602 فیلتر نتایج به سال:
In transportation sector implemented deregulation processes as well as increased free competition in the global scale have been key change drivers in recent decades. This research work analyzes in retrospective shareholder value creation in North American railway freight and peer group of four transportation companies from Europe and one from Asia. Research shows that North American, and partic...
China’s Railway Transportation (CRT) is enjoying a time of unprecedented development thanks to huge government investment and a series of aggressive favorable policies. Understanding the opportunities and challenges facing the CRT affords the practitioners and policy makers a better perception of development regarding this important transportation mode. This paper attempts to comprehensively as...
In this paper, we give an overview of state-of-the-art Operations Research models and techniques used in passenger railway transportation. For each planning phase (strategic, tactical and operational), we describe the planning problems arising there and discuss some models and algorithms to solve them. We do not only consider classical, well-known topics such as timetabling, rolling stock sched...
Almost all trains have to run according a schedule. One exception may be some freight trains which may start at a random time. Unfortunatly, for some reasons, some minor problems occur and lead to have delays. Due to limited ressources available (tracks, cars,. . . ), a small problem can lead to a chain of delays. To monitor the traffic and take decisions are the main goals of the train dispatc...
Railway transport is one of the basic modes and economy as a whole for Republic Kazakhstan. It this type that ensures transportation significant amount dangerous goods various properties. Failure to observe safety measures precautions during their may pose threat railway workers, public, well environment. Transport highest priority parts transport. Safety depends on synergistic interaction many...
Today, railway operation procedures include the transportation of large amount of hazardous substances. Our research has been motivated by the desire to find concrete and urgent solutions to the safety issues of handling waste generated manly in case of accidents and disaster situations during the transportation of hazardous substances In order to ensure safety in the transportation of dangerou...
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