The paper presents an application of an on-board recording system for critical situation detection in railroad transportation. The evaluation of the state of a rail vehicle is based on the signals recorded with the use of ORD (On-Board Recording Devices) devices. The main subject of interest are critical situations that can occur when the rail vehicle is in motion. The critical situation is any...

Fuel cell power for locomotives combines the environmental benefits of a catenaryelectric locomotive with the higher overall energy efficiency and lower infrastructure costs of a diesel-electric. A North American consortium, a public-private partnership, is developing a prototype hydrogen-fueled fuel cell-battery hybrid switcher locomotive for urban and military-base rail applications. Switcher...

Road-rail vehicles built on traditional vehicle chassis can only switch operation modes at particular areas such as level crossings, thus limiting the working scope and efficiency of routine railway inspection maintenance. This paper proposes a novel tracked for road-rail with multi-cylinder hydropneumatic suspension system, which better adapt to rough terrains enhance ride performance. Based t...

high speed trains are an indispensable part of rapid transportation systems in many countries. as the fastest means of transport on the ground, these trains are extremely sensitive to the terrain and track conditions. geometrical irregularities and mechanical characteristics of the track, together with inconsistencies in the lane (including bridges that support the track) are considered importa...

Since its early days the development of railway systems has been an important driving force for technological progress. From the 1840s onward a dense railroad network was spread all over the world. Within a few decades railway became the predominant traffic system carrying a steadily increasing volume of goods and number of passengers. This rapid development was accompanied by substantial devel...

ABSTRACT The quality of ride is predominantly controlled by the design of the secondary suspension in rail vehicles. That is why air springs are increasingly important suspension component in rail vehicles. This is necessary for higher preload, higher speed as well as improved ride dynamics and noise levels. These necessities have created an interest for modeling the air springs for the simulat...

Bridge rails are a type of longitudinal barrier that serves the important purpose of keeping vehicles on the bridge structure. Many different designs have evolved for bridge rails, including some based upon the cross sections used for rigid concrete safety shapes. These designs need to conform to the crashworthiness requirements of NCHRP Report 350 or MASH to be acceptable for use on U.S. highw...

Abstract The suspension-type monorail (STM) is a new type of rail transit, currently developing rapidly in China. Due to its short construction duration and high terrain adaptability, STM can save large land resources. In particular, by supplementing the traffic systems medium-sized cities, contribute green tourism projects. However, no systematic study devoted transit system China, there still...

The importance of simulation calculations in developing railway vehicles and their subsystems is consistently growing compared to physical experiments track tests [...]

This paper uses a market potential approach to examine the evolution of the rail transport network of China and its spatial distributional impacts on local accessibility, with a particular focus on high-speed rail improvements. Accessibility is measured by using a “market potential” function that was derived from the general equilibrium model of the economic geography literature, and is empiric...