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Crash Barriers

Volume 169: debated on Tuesday 13 March 1990

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To ask the Secretary of State for Transport what plans he has to make the crash barriers along Britain's motorways of sufficient height to eliminate the glare from oncoming cars at night.

The purpose of central reserve safety fences is to mitigate the risks and consequences of errant cars crossing into the opposite carriageway. Their ability to reduce or eliminate glare on most of the motorway network is incidental.A trial involving the provision of an anti-dazzle screen on top of the safety fence has been carried out on 19 km of the M6 between junctions 2 and 4. The evaluation showed that while it further reduced or eliminated glare there was no significant effect on accidents. Nonetheless, where glare has been or is identified as a serious problem because of the alignment of a particular stretch of motorway, the Department erects such a screen if it is justified on safety and financial grounds.