Rail international 

About: Rail international is an academic journal. The journal publishes majorly in the area(s): Track (rail transport) & Train. It has an ISSN identifier of 1022-4076. Over the lifetime, 313 publications have been published receiving 853 citations.

Linear programming of empty wagon disposition

Abstract: Deals with the problem of optimizing wagon hours on a railways division with and without constraints on route capacities. Both the linear programming techniques, namely, the Transportation and the Simplex methods have been discussed with the aid of simple numerical examples bringing out their basic differences as well as the scope of their application. It has been taken for granted that the readers are aware of the iterative procedures involved in the two methods.

Pressure effects in railway tunnels

Abstract: The severe pressure gradients, generated by high-speed trains travelling through tunnels, have several important implications. They can cause considerable discomfort and occasionally medical problems to passengers. Various solutions can be applied, but they are at present expensive. It is possible to adopt one or several of the following approaches: (1) applying speed restrictions; (2) using large tunnel cross sections; (3) installing pressure-alleviation devices; (4) sealing the trains; and (5) preventing or minimising the passing of trains in tunnels. This paper discusses some of the problems and possible solutions, in relation to various research programmes, including EU-funded work through the International Union of Railways (UIC) and the European Rail Research Institute (ERRI). The first priority of the research was to understand the source of the problem, the generation of pressure waves by trains travelling through the tunnel and passing each other inside it. The paper discusses how to alleviate the effects of these pressures, for example, by increasing tunnel size, optimising tunnel shape, or locally modifying existing tunnels. It also considers rolling stock pressure sealing, interaction with other traffic, and comfort and health criteria, and outlines some experimental and theoretical researches.

A new design approach for railway vehicle suspension

Abstract: Two new vehicle suspension designs which resolve the conflicting requirements for hunting stability and curving ability of railway vehicles in an uncompromising manner are described and analyzed. These designs are the diagonal wheelset suspension and the negative wheelset yaw suspension systems. Design details and test results are given, particularly for the diagonal suspension system which has been extensively tested.