Wind effects induced by high speed train pass-by in open air

Structures and people, when standing along a railway line, are exposed to wind loads produced by train pass-by depending on their relative position, the object shape and dimensions, train speed and aerodynamic features. The design of railway equipment and the safety of passengers/workers along the line require specific investigation of the wind effects induced by the train transit, which are prescribed by standard specifications but are still a subject of ongoing research activities. This paper presents some results of an intensive full scale experimental investigation performed on high speed trains running on the Italian railway lines, considering train aerodynamic aspects in open air.