veloSTRAIL is a product in the STRAIL range of level crossings, first used in Austria in 2006, where the Salzburger Lokalbahn trains have not yet worn out the original inserts.  It transforms the road-rail harbour bridges in Hamburg in 2007, and has been retro-fitted to on-street tram track in Geneva at points where there were problems with cycle crossings.The key detail is not the slippery rails but the small vertical edges which knock a tyre sideways when struck at a shallow ang