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K REV*.

16th January 1982
Page 17
Page 17, 16th January 1982 — K REV*.
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Which of the following most accurately describes the problem?

mical inquiry into rries and altitudes

THOR L. H. Wackins in vironmentai Impact of Roads Traffic (applied Science Plishers, £26) is nothing if not ical in view of the battle over White Paper onheavier les.

hr Watkins is a consultant and s formerly head of the tironment Division at the nsport and Road Research mratory.

hr Watkins suggests that the A has been very much in the ?.front of environmental ion under the aegis of the tironmental Protection ncy which set out various ional responsibilities and s instigated the eironmental Impact tement (E15).

ccording to Mr Watkins, it ,ms likely that increasing use I be made of some version of E15 in examining highway emes and presenting them to public. In the UK this will bably, be some form of the tch Report which is covered fly.

he he chapter of most obvious :rest on the commercial licle side is entitled "Lorry sance". The author is hing if not realistic when he s the UK has "a weight limit 32 tons and massive )osition to heavy vehicles 11 at this limit, let alone of -eased weight."

he book provides some gmation on the relationship ween size and nuisance from studies conducted by the IL (whose reports are quoted ireat number throughout the )k). In these studies, the idents of two small towns asked to assess the sance caused by three nbinations of lorry, one 16carrying capacity artic, two ht-ton capacity boxvans and illy four boxvans with a load acity of four tons.

he various preferences of the dents are indicated although author rather devalues the Jlts by admitting that the dity of the responses is open luestion since the Dondents were only given y limited experience of the alternative being evaluated.

One extremely interesting conclusion drawn by the author is that there seemed to be no automatic "anti-juggernaut" response and that the question was at least regarded as a sensible one by those interviewed.

Not surprisingly, the Quiet Heavy Vehicle project is covered in some detail. The noise level of this vehicle, which required extensive modification, is quoted at 80dBA in comparison with the Leyland 145 (which the author unfortunately refers to as "the road train") at 84/85dBA.

Exhaust emissions are given a chapter to themselves where the exhaust gas is quoted as being responsible for 100 per cent of the carbon monoxide, oxides of nitrogen and lead compounds but only 65 per cent of the hydrocarbons, the crankcase blowby and fuel tank accounting for the remainder.

A lot of work has gone into this book if judged only on the basis of the references, and this is reflected in its price.

Applied Science Publishers, of Ripple Road, Barking, Essex.

G.S.M.

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