(1)Where buildings or walls contain doors or gates which open on to railway track, a barrier about 3 feet 6 inches high shall be fixed parallel to and about 2 feet away from the building or wall outside the opening and extending several feet beyond it at either end, so that a person passing out may become aware of an approaching train when his pace is checked at the barrier.If the traffic on the nearest track is all in one direction, the barrier shall be in the form of an L with the end of the short leg abutting on to the wall and the other end opening towards an approaching train.
