The Route, the traffic from North to South in WiltshireRuth Kelly and the Department for Transport has just published (30th October 2007) their report entitled "Towards a Sustainable Transport System: Supporting Economic Growth in a Low Carbon World", and I took a look at some of its 90 pages. Page 27 includes a diagram showing road conjestion, and I've reproduced a zoomed section here.
* Roads shown in red cause an annual total loss of up to 139000 hours per km
* Roads shown in Orange cause an annual loss of between 6500 and 28000 hours
* And roads shown in blue cause a loss of under 6500 hours per km per annum.
(There are no roads on this section with a loss of over 139000 hours per km.)
You can see the major North - South traffic flows at the Western end of my map - a fairly clear run up from Salisbury to Warminster, but the two severely overloaded road routes from that area via Bath to the M4 (that's to the left) and via Chippenham to the M4 (that's to the right).
The towns of Swindon, Chippenham, Melksham, Trowbridge, Westbury and Warminster - and Salisbury and Frome too - are slated for major growth with up to 50% more homes in the next 20 years.
I undertstand that an agreement bewteen Wiltshire County Council and BaNES (Bath and North East Somerset) will route additional traffic via the right hand leg to relieve the left hand leg once the section at Westbury has been bypassed.
Would you like to see how the passenger railway along this corridor fits onto the map?
On that map I have also added the place names - the largest five population centres in Wiltshire (Swindon, Salisbury, Trowbridge, Chippenham and Melksham), and the other two large towns inthe county on the roads concerned - Westbury and Warminster.
I note especially the conjestion indicators for the road past Westbury, and past Melksham. Remember that there are strong proposals to provide a bypass at Westbury at the moment, but that plans for a relief road around Melksham were dropped from the 10 year plan. The current proposal for a new Asda store would join directly on to the red section at Melksham.