نتایج جستجو برای: railway transportation
تعداد نتایج: 70602 فیلتر نتایج به سال:
Ever since the dawning of computers and its related technologies, railway has been one of the major application domains in which wide variety of information and communication technologies are successfully utilized. Substantial efforts have been made in such fields as transportation planning, passenger information services (including seat reservations), train control, and train traffic managemen...
The purpose of this study is to analyze the risks associated with stationary rail cars carrying hazardous materials (Hazmat) in railway stations. This study considers risk analysis of the Liquefied Petroleum Gas (LPG) storage cars queued in Sarakhs Railway Station in Iran. The congestion of LPG cars at station may lead to some incidents which can endanger people and cause damages to the propert...
The problem of control and management of railway transportation is a complex task with major outcomes in a modern society. Trains are suitable for transporting peoples and goods with a good trade-off between cost and rapidity. A railway system consists of a network of tracks, list of stations, safety devices (signals, sensors, etc) and a set of trains. Trains moves from one station to other alo...
Historically, changes in transport infrastructures have produced a progressive contraction of space, in the sense that travel times have been shortened and transport costs have been reduced. Improvement of transportation networks reduces interaction costs, increases the overall competitiveness of the system and allows for more specialization such that economies of scale and specialization benef...
Railway grade crossing is become the major headache for the transportation system. This paper describes an intelligent railway crossing control system for multiple tracks that features a controller which receives messages from incoming and outgoing trains by sensors. These messages contain detail information including the direction and identity of a train. Depending on those messages the contro...
In the current situation, the automobile has become the main means of locomotion. It allows traveling long distances, encouraging urban sprawl. To counteract this trend, the train is often proposed as an alternative to the car. Simultaneously, the favoring of urban development around public transport nodes such as railway stations is one of the main issues of the coordination between urban plan...
Railway crew scheduling problem is a substantial part of the railway transportation planning, which aims to find the optimal combination of the trip sequences (pairings), and assign them to the crew complements. In this problem, each trip must be covered by at least one pairing. The multiple-covered trips lead to impose useless transfers called “transitions”. In this study, a new ma...
Railway transportation plays an important role in the economic development of Iran. National Iranian Railways includes fifteen regional railways which operate independently, but under the supervision of National Iranian Railways Company. Evaluating the efficiency of regional railways is an important issue in Iran and is one of the bases for budget and resource allocation for further developmen...
The economy of China and the travel needs of its citizens depend significantly on the continuous and reliable services provided by its railway system. However, this system is subject to frequent natural hazards, such as floods, earthquakes, and debris flow. A mechanism to assess the railway system vulnerability under these hazards and the design of effective vulnerability mitigation strategies ...
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