نتایج جستجو برای: railway transportation
تعداد نتایج: 70602 فیلتر نتایج به سال:
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...
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...
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...
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...
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...
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...
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...
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 ...
In recent years, there have been requirments for a transport environment that will foster comfortable and safe town development. Studies on urban activities in aging societies with falling birthrates and effective use of public transport modes in addressing environmental problems have become particularly important issues. Public transport is of great importance, especially from the perspective ...
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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