نتایج جستجو برای: railway wheelset

تعداد نتایج: 14510  

2011
Ulrich Kral Paul H. Brunner

" Sustainable management of railway infrastructure –a case study in analyzing the fate of copper along railway tracks " , 9th World Congress on Railway Research " Meeting the challenges for future mobility " , May 22-26, SNCF, Lille, France.

2015
Rob M.P. Goverde Nikola Besinovic Anne Binder Valentina Cacchiani Egidio Quaglietta Roberto Roberti Paolo Toth

The performance of railway operations depends highly on the quality of the railway timetable. In particular for dense railway networks it can be a challenge to obtain a stable robust conflict-free and energy-efficient timetable with acceptable infrastructure occupation and short travel times. This paper presents a performance-based railway timetabling framework using an integrated approach on t...

2004
M. A. Salido F. Barber M. Abril P. Tormos A. Lova L. Ingolotti

Railway capacity has been a significant issue in the railway industry. Over the last few years, numerous approaches and tools have been developed to compute railway capacity. In this paper, we compute railway capacity to design a topological model for solving periodic train scheduling, developed in collaboration with the National Network of Spanish Railways (RENFE). This topological technique t...

2014
Lay San Too Allison Milner Lyndal Bugeja Roderick McClure

BACKGROUND Railway suicide has significant adverse impacts for the victims, their family and friends, witnesses to the incident, general public and train network. There is no previous review on the socio-environmental factors and railway suicide. The research question asked in this review was: 'What socio-environmental risk and protective predictors are significantly associated with railway sui...

Journal: :European journal of public health 2006
J Baumert N Erazo K H Ladwig

BACKGROUND Railway suicides strongly impact psychological and socioeconomic aspects of the railway company, its employees and possible eye witnesses. We aimed to assess the incidence of railway suicides compared with the total burden of suicides in Germany and its time trend over a 10-year observation period. METHODS From 1991 to 2000, a total of 8,653 fatal railway suicides were recorded by ...

ژورنال: :مهندسی عمران مدرس 0
جبارعلی ذاکری دانشگاه علم و صنعت ایران تهران میثم نعیمی دانشگاه علم و صنعت ایران، تهران مرتضی اسماعیلی دانشگاه علم و صنعت ایران، تهران

abstract: ballasted railway track are of the most common types of railway in our country. the aim of this paper is study of three-dimensional suitable model for railway ballasted track and dynamic analysis of that using numerical runge-kutta 4th order method. after the dynamic analysis is performed the responses related to railway components are determined. to analyze the effect of passing rail...

Journal: :International journal of prognostics and health management 2021

The wheel-rail interface is regarded as the most important factor for dynamic behaviour of a railway vehicle, affecting safety service, passenger comfort, and life wheelset asset. degradation wheels in contact with rail visibly manifest on their treads form defects such indentations, flats, cavities, etc. To guarantee reliable service maximise availability rolling-stock assets, these need to be...

Journal: :BMC public health 2016
Anna K Taylor Duleeka W Knipe Kyla H Thomas

BACKGROUND In 2010, the "Tackling Suicide on the Railways" programme was launched as a joint initiative among Network Rail, the Samaritans and other key organisations such as the British Transport Police and train operators to achieve a 20% reduction in railway suicides from 2010 to 2015 in Great Britain. We report the most recent age and sex specific trends in railway suicide in England and Wa...

1994
Michiel C. van Wezel Joost N. Kok J. van den Berg W. van Kampen

We consider how to improve railway timetables. As case we take the Rompnet of the dutch railways, a highly constrained problem, containing both hard and soft constraints. We show how to cast the constraints into the format of the Genocop system. Every train should run every hour at the same time and hence the constraints should be interpreted modulo sixty. This gives a non-convex search space o...

2008
SUBHASH CHANDRA PANJA Subhash Chandra Panja Pradip Kumar Ray

Signalling, a complex system is one of the most important infrastructures of railway service. The performance of railway signalling system depends on the functioning of a number of subsystems, such as panel, cable, relay, point and point machine, trackcircuit, signal, back indication, point-drive card, signal-drive card, and level crossing gate. Railway signalling system plays an important role...

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