The demand for safe, fast, and reliable rail services continues to be the reason for concern in all the countries across the globe. Lack of operational efficiency and reliability, safety and security issues, and aging railway systems and practices are haunting various countries to bring about a change in their existing rail infrastructure. The global rail industry struggles to meet the increasi...

In this paper, we have designed a machine visionbased method to identify the defected or missed or grounded rail anchors/fasteners that attach each line with the sleepers. Rail line inspection system is executed manually, especially in third world countries, like Bangladesh. This manual inspection is lengthy, laborious and subjective. To detect and classify the damaged or missed or grounded rai...

Considerable yet largely unexpected growth in passenger rail demand has occurred recently in Australian capital cities. This article uses historical data, together with modern time series methods, to examine empirically the factors that might have contributed to growth in passenger rail demand in Melbourne, Australia, and to gain greater insight into the relationships between the various explan...

We examine the life cycle costs, environmental discharges, and deaths of moving coal via rail, coal gas via pipeline, and electricity via wire from the Powder River Basin (PRB) in Wyoming to Texas. Which method has least social cost depends on how much additional investment in rail line, transmission, or pipeline infrastructure is required, as well as how much and how far energy is transported....

It is conspicuously to announce that China has already become the country with the largest-scale market as well as the fastest growing urban rail transit in the world. This article, from the perspective of production and operation, has described the status quo of the informationization of rail transit enterprises and analyzed the demands for functions of operation information system of these en...

Dual Rail Precharge (DRP) circuits, which are theoretically secure against differential power analysis attacks, suffer from an implementation problem: balancing routing capacitance of differential signals. To solve this, four proposals have been put forward: DWDDL [18], FatWire [19], Backend Duplication [4] and Three Phase Dual Rail [2]. Of these, three of them (DWDDL, FatWire, Backend Duplicat...

The dynamics of a railway vehicle are driven by the geometry and conditions at the wheel-rail contact. Typically the condition and shape of the wheel and rail are monitored separately and off-line. The work presented here is part of ongoing research into on-line modelbased estimation of parameters in the wheel-rail contact dynamics. This paper outlines a practical approach to estimating a nonli...

Direct current (DC) traction power systems are widely used in metro transport systems, with running rails usually being used as return conductors. When traction current flows through the running rails, a potential voltage known as “rail potential” is generated between the rails and ground. Currently, abnormal rises of rail potential exist in many railway lines during the operation of railway sy...

We apply real time physics techniques from video game development to the simulation of rail vehicles for rapid analysis of the stability of the wheel rail interface. We introduce a fast simulation algorithm for the wheel rail interface, using a splinebased approach to approximate the gravitational stiffness force. We compare our simulation to results achieved from solving the Nadal equation for...