Guard Railings 1 Answers Guard Railings #FAQ What guard rails and why are they used? While traveling in a train you might have observed extra pair of rails are provided along a bridge, below a flyover or foot over bridge. These rails are known as guard rails. The purpose of the guard rails is to prevent the derailed train to hold on the tracks, not to moVe away from the track to avoid more destruction. The picture is self explanatory, that the guard rails hold the wheels of the bogies in case of a de-railment and prevent a... more... |