Crew scheduling is a very well known problem which has been historically associated with airlines and mass transit companies; recently also railway applications have come on the scene. This now happens especially in Europe, where deregulation and privatization issues are forcing a reorganization of the rail industry and better productivity and eecient services are strongly required by the marke...

OBJECTIVE Railway workers performing maintenance work of trains and tracks could be at risk of developing noise-induced hearing loss, since they are exposed to noise levels of 75-90 dB(A) with peak exposures of 130-140 dB(C). The objective was to make a risk assessment by comparing the hearing thresholds among train and track maintenance workers with a reference group not exposed to noise and r...

The weak expansive soil subgrade of the railway in operation is prone to settlement a high-temperature climate, which results rapid deterioration geometric dimensions track, and affecting safety train operation. This paper uses Track Geometry Measurements (TGM) analyze characteristics track geometry parameters soil. Also establishes Settlement Prediction Model (SPM) identify time predict value ...

INTRODUCTION TRANSPORTATION of people is increasing as our society grows and the demand for railway services that can provide high-speed and high-capacity transportation is becoming greater. The number of train rides taken in Japan in 2006 was 22,243 million, more than anywhere else in the world by some margin, making Japan one of the world’s leading railway nations. A major feature of railway ...

apart from regular wheel wear such as decreasing wheel diameters and reduced flange thicknesses and heights, wheel flats (wf) and oval wheels (or oor, out-of-roundness) are the most common wheelset problems for railway vehicles. within the fp7 research project “saferail”, apt has developed an innovative wheelset monitoring system so-called “wheel flat and out of roundness monitoring (worm) syst...

Petri Net being one of the most useful graphical tools for modelling complex asynchronous systems, we have used Petri Net to model multi-track railway level crossing system. The roadway has been augmented with four half-size barriers. For better control, a three stage control mechanism has been introduced to ensure that no road-vehicle is trapped on the level crossing. Timed Petri Net is used t...

This paper presents the design of crack finding robot for finding cracks in railway tracks. Here PIC16F877A microcontroller is interfaced with Robot, Zigbee, GPS, LCD and IR sensors. The IR sensors are used to find crack in the railway track, and then GPS is used to find the location. If the microcontroller detects the crack, it immediately gets the location information using GPS and sends that...

Bangladesh’s railway infrastructure is outdated and inadequate, the lack of transportation capacity seriously hinders country’s economic development. In track engineering practice EPC projects such as second line project a Meter-Gauge addition new Board-Gauge in Bangladesh, according to operation characteristics maintenance status existing cable Bangladesh railway, design construction track, pr...