Railway level crossing, has loudspeakers that transmit noise of train at right distance from crossing to unprotected road/level crossing, and actuated through current in crossing or through solar cell

摘要

The crossing (3) has two loud speakers (1) that are fixed to a retaining post. The loudspeakers that are connected by contacts transmit noise of a train at a right distance from the crossing to unprotected road/level crossing. The loudspeakers are actuated through current in the crossing or through a solar cell. The crossing covers both road sides with the loudspeakers.