The development of High Speed Rail (HSR) in Europe has been encouraged and financially supported by the European Commission. Several lines are in operation, and many others under construction or waiting for approval. HSR technology is presented as a solution to congested roads and airports. Besides, rail transport is generally regarded as more environmentally friendly than other modes. However,...

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...

A model to compare three alternative forms of public transport – light rail, heavy rail and bus rapid transit is developed for an urban network with radial lines emanating from the borders to the city centre. The theoretical framework assumes an operation aimed at minimising the total cost associated with public transport service provision, which encompasses both operator and users costs. The d...

The generation of wheel–rail-sliding frictional heat is often accompanied by transverse displacement a wheel. To study the thermal problem wheel–rail sliding friction at two-point contact, this paper uses an LM tread wheel and 60 kg·m−1 rail as examples. A thermal–mechanical-coupled finite-element model equal proportion established. direct-coupling method used to analyze thermal–mechanical coup...

A pricing methodology adapted to specific railroad infrastructures and the trains that use them is one way to ensure that railroad networks used by several different operators are used optimally. The diversity of railway networks (new lines and old lines) and services (long-distance and suburban passenger trains, freight trains, etc.) make it difficult to develop such a pricing methodology. Thi...

The centuries since the birth of the Industrial Revolution have seen a succession of increasingly sophisticated transport technologies, each offering improvements in speed, carrying capacity and/or operational flexibility. Having spent this time overcoming the physical barriers to freedom of movement imposed on us by the natural world, humanity now appears to face two immense, and related, chal...

The design and development of modern internal combustion engines is marked by a reduction in exhaust gas emissions and increase in specific power and torque. This paper aims at the study of noise reductuion in4-stroke common rail direct injection engine at idle speed. Idle speed is basically a speed of engine when vehicle is not running i.e not in motion . Now a days , this siuation oftenly com...