Where a road crosses a waterway a 'level crossing' HAS to get the road removed before the boats (which have a braking performance even worse than a train) can pass. One option therefore for lightly used crossings, which has a secondary benefit of eliminating a requirement to have a road surface with flangeways that requires removal for track maintenance, is to have a roadway which raises like a bascule bridge, counterweighted to lie naturally in the raised position. when not in (& after) use
Where a road crosses a waterway a 'level crossing' HAS to get the road removed before the boats (which have a braking performance even worse than a train) can pass. One option therefore for lightly used crossings, which has a secondary benefit of eliminating a requirement to have a road surface with flangeways that requires removal for track maintenance, is to have a roadway which raises like a bascule bridge, counterweighted to lie naturally in the raised position. when not in (& after) use
BCCletts 8 months ago