نتایج جستجو برای: railway terminal

تعداد نتایج: 163699  

2005
J. MACÍAS-GUARASA R. SAN-SEGUNDO J. M. MONTERO J. FERREIROS R. CÓRDOBA J. M. PARDO

This article describes a search algorithm adapted to the Spanish Railway Network for generating as many traveling options as possible between two railway stations. This algorithm (Warshall’s algorithm) uses connecting matrices to find all possible railway journeys. The Spanish Railway Company has imposed severe restrictions: less than 1 second per query in a 600Mhz processor PC with 32Mb RAM an...

2015
Dong Zhan Long Yu Jian Xiao Tanglong Chen

Railway tunnel 3D clearance inspection is critical to guaranteeing railway operation safety. However, it is a challenge to inspect railway tunnel 3D clearance using a vision system, because both the spatial range and field of view (FOV) of such measurements are quite large. This paper summarizes our work on dynamic railway tunnel 3D clearance inspection based on a multi-camera and structured-li...

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...

Journal: :European Journal of Operational Research 2008
Ricardo Mateus J. Antunes Ferreira João Carreira

Over recent years, Portugal has been working towards their integration in the trans-European high-speed railway network. While in Spain several new high-speed lines are already under construction or beginning operation, in Portugal the necessary studies are still being carried out. One of these studies concerned the location of one of the high-speed railway stations to be built in the city of P...

2008
G. M. Shafiullah Scott Simson Adam Thompson Peter J. Wolfs A. B. M. Shawkat Ali

Wireless communications and modern machine learning techniques have jointly been applied in the recent development of vehicle health monitoring (VHM) systems. The performance of rail vehicles running on railway tracks is governed by the dynamic behaviors of railway bogies especially in the cases of lateral instability and track irregularities. In this study we have proposed a system to monitor ...

2013
Tao Xie Rui Wang Xinyu Jin Duanpo Wu

Railway digital radio system, GSM-R, is a dedicated system for railway based on GSM system, which shoulders the demand of dedicated dispatching communication for railway. So it is extremely important to research the data transmission of GSM-R. In this paper, a data transmission method has been proposed, based on the actual measurement report of GSM-R and a prediction algorithm, in analyzing the...

The study of various countries rail transportation indicators is an appropriate criterion for evaluating the existing performance of Iranian railways. The experiences of other countries can be used to improve the efficiency of Iran’s rail transportation. At the beginning of the study, in order to compare the Iranian railway performance with railways of other countries, various efficiency indica...

2010
Alexander Armstrong Joern Meissner

The railway industry offers similar revenue management opportunities to those found in the airline industry. The railway industry caters for the delivery and management of cargo as well as the transport of passengers. Unlike the airline industry, the railway industry has seen relatively little attention to revenue management problems. We provide an overview of the published literature for both ...

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...

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...

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