NBN EN 14067-4:2006

This European Standard applies to train-induced aerodynamic loading on open track caused by:
¾ trains passing a permanent or temporary structure;
¾ trains passing a person who is alongside the track;
¾ two trains passing each other.
This European Standard applies to open air structures of any length and closed structures of a length less than 20 m enveloping the tracks. For closed structures enveloping the tracks that are longer than 20 m prEN 14067-5 applies.
For effects caused by cross winds, the aerodynamic phenomena are described in prEN 14067-6.
In addition, this European Standard applies to the resistance of motion for trains in open air.