On the environmental performance of a high-speed train

E. Andersson, U. Carlsson, P. Lukaszewicz and S. Leth

International Journal of Rail Transportation, 2014, vol. 2, issue 1, 59-66

Abstract: Environmental performance is one of the major considerations of future high-speed trains. Two main issues have been closely investigated in the Green Train programme, namely (1) energy use and (2) external noise. Analysis, development and testing in the Green Train programme have focused primarily on speeds up to 250 km/h, although the energy issues have also been studied at top speeds up to 320 km/h. The energy use is estimated for both long-distance trains with few stops and for fast regional services with relatively tight underway stops. These estimations result in an energy use of 46-62 Wh per passenger-km - or 30-40 Wh per seat-km - accounted as electricity taken from the public electric power grid. Improved aerodynamic performance, efficient space utilization, electric regenerative brakes, eco-driving advice and improved energy efficiency in the propulsion system make this possible. Trackside noise has also been analysed and tested in the programme. In order to maintain the same or lower noise level at 250 km/h as at lower speeds with current trains, a number of measures are proposed. These include bogie skirts, wheel absorbers and careful aerodynamic design of the front area and of all protruding objects. In sensitive residential areas, further improvement may be achieved with rail absorbers or low trackside screens.

Date: 2014
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DOI: 10.1080/23248378.2013.878296

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