Prefabricated road surface sections - for accident black spots have drain holes and foam lined channels removing water

摘要

Precast separate plates of concrete, the breadth of which is at least equal to the pitch of the wheels of the road vehicles or aircraft running on the surface, form roadway sections for vehicular traffic such as streets, motorways, aircraft runways, etc. The sections have on their surface elliptical openings offset to one another and aligned in opposite directions, which open out conically from the surface downwards, into channels in the bottom zone of the plates for draining away water. The drain channels are lined with material for compensating expansion, such as expanded polyurethane and between the joints held together by tie bars, liners of synthetic foam are provided. The plates ensure that irrespective of the weather dangerous corners, crossings, etc. are kept free from surface water so that aquaplaning is prevented.