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Concrete barriers are the safest

Letters

The introduction of 44 tonne lorries could add significantly to the force of impact on (and to the resultant energy stored in) tensioned wire rope barriers (NCE last week).

This seems to have been a contributory factor in the recent accident on the M23, during which some allege a van was catapulted into the opposite carriageway by the wire rope barrier.

There should be enormous concern at the recent spate of crossover accidents and engineers need to reconsider the implications of the systems they have specified. The safest option of all is to invest in vertical concrete barriers.

Graham Taylor, executive secretary, Britpave, Century House, Telford Avenue, Crowthorne, Berks RG45 6YS

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