Study of various transportation indicators could be an appropriate criterion in evaluating the performance of the existing railways throughout the globe. This study was carried out to investigate the performance of rolling stock of Iranian railway using productivity analysis. In order to solve the problems, some solutions were provided by productivity management cycle steps. At the first step, ...

Railway maintenance planners require a predictive model that can assess the railway track geometry degradation. The present paper uses a hierarchical Bayesian model as a tool to model the main two quality indicators related to railway track geometry degradation: the standard deviation of longitudinal level defects and the standard deviation of horizontal alignment defects. Hierarchical Bayesian...

Signature of A uthor........ ......................r.. . ........ .................................................... Department of Civil & Environmental Engineering May 11 th, 2012 C ertificated by............. . ........................... Joseph M. Sussman JR East Professor of Civil & Environmental Engineering and Engineering Systems 11 11 A ccepted by .........................................

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...

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...

The performance of Indian railways in the nineteenth century provides a great context to study the effects of state ownership on productivity and other aspects of operations. We rely on a key feature of the institutional background whereby the Government of India purchased a majority ownership stake in private railways at predetermined dates set by contracts negotiated decades before the compan...

purpose: the purpose of this research is to identify and validate indicators used to evaluate research productivity of iran universities based on view of research assistants and managers of universities across the country.methodology: in other to achieve this aim documentary method and survey method were applied to identification and validation of these indicators respectively.. sample of this ...