Effects of Strong Cross Winds on High-Speed Trains - a Risk Assessment Approach

摘要

For several years Deutsche Bahn AG (German Rail) has been investigating the risks from the operation of lightweight end coaches due to cross winds. The methodology, which can be applied to all types of rail traffic, is described for high-speed trains. It involves the computation of permissible wind speeds using wind tunnel and simulation techniques, followed by a quantitative assessment of the frequency with which the permissible wind speed is exceeded at the leading vehicle. Safety criteria are used to derive to which extent countermeasures are necessary to guarantee safe railway operations. The methodology was approved by the responsible federal authorities and is successfully being applied in practice.