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By-pass proves an asset

18th February 1977, Page 27
18th February 1977
Page 27
Page 27, 18th February 1977 — By-pass proves an asset
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Which of the following most accurately describes the problem?

RESEARCH by the Transport and Road Research Laboratory has shown that noise and pollution drops significantly in a town when it is by-passed by a new road.

Measurement showed that traffic levels dropped by over a third when a by-pass was opened at Tring, Hertfordshire, and heavy traffic dropped by 90 per cent.

The effects of the opening of a new road were measured by public opinion and physical readings.

Traffic in the town centre decreased from 15,000 to 9,000 vehicles a day and noise went down by 5dB(A), while pollution was very low.

Nuisance value of the traffic was measured by asking the residents what they thought, and levels of those claiming to be bothered by the traffic dropped from 75 per cent to 47 per cent.