• A road surface designed by the Highways Agency to
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reduce tyre noise could hove a beneficial effect on hauliers' fuel bills. A welcome side effect of "whisper concrete" is said to be a lowering of rolling resistance.
A spokesman for the Transport Research Laboratory says the rolling resistance of the new surface "may well be better" than existing surfaces (differing road surfaces can affect rolling resistance by up to 50%). The Highways Agency has already used it on the Al 3 Wennington to Mar Dyke road in Essex and plans to use it "where appropriate" in other areas.
Whisper concrete is port of a package of measures designed to reduce the impact of roads on the environment. Other measures include: 0 Road lamps which can only be seen by motorists (see picture); 7 Plastic-coating to improve the appearance of bridges; ) Greater use of tunnels.