Platform Aerodynamic Risk Assessment

The Platform Aerodynamic Risk Assessment (PARA) is used to determine the level of risk created by the displaced air flow that is generated as trains pass through platforms. It helps to identify the factors that can be put in place to mitigate and reduce risk to passengers.

As a train passes through a platform and pushes the air in its path over and around the train, it causes a slipstream alongside. Individuals standing on the platform can feel strong gusts of wind, objects may be swept along the platform or into the path of the train and it may cause vulnerable individuals to lose their balance. 

The video below demonstrates this. 

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