Procedure and system for temporarily increasing the capacity of a motorway uses road surface indicators to allow use of hard shoulder as traffic lane

摘要

The procedure, for use on a motorway consisting of one or more traffic lanes (V1 - V3) and a hard shoulder (BAU) for stopping in an emergency, employs a system of road surface markers (LT1, LT2, LT3) such as luminous studs that can be activated to convert the hard shoulder into a supplementary road traffic lane (VS) and to return it to normal use. The surface markers also adjust the lane width so that the hard shoulder is the same width as the other lanes. At the same time indicators (FAV2) can be used to reduce the maximum permitted traffic speed e.g. from 130 to 110 kmph.