§ Mr. AllenTo ask the Secretary of State for Transport which schemes in the national roads programme have been reviewed to estimate the effects of induced traffic; and for each of these schemes by how much this review has changed the 30-year traffic level predictions and the net present value of the scheme. [22759]
§ Mr. WattsThe Highways Agency is carrying out Standing Advisory Committee on Trunk Road Assessment for all schemes in the national programme. So far, a total of 64 schemes have been provisionally assessed by the agency. These are listed in the schedule at annex A.
The volume of additional traffic induced by schemes is generally expected to be less than 10 per cent. and in many cases below 5 per cent.
The economic assessment process for induced traffic is developing and current appraisal techniques are being improved for the future. For now, where induced traffic 703W is a significant factor, the agency is undertaking sensitivity tests which impose a fairly severe test of scheme economics. For example, in some cases tests have been undertaken with significantly higher volumes of induced traffic than are expected in practice. So far none of the schemes assessed has failed the tests; even where unrealistically high levels of induced traffic have been assumed all have remained good value for money.
- SCHEMES ASSESSED FOR INDUCED TRAFFIC
- Scheme Title
- Al Gateshead Western Bypass
- Al20 Stansted—Braintree Improvement
- A 13 Ironbridge—Canning Town Improvement
- A13/A112 Prince Regent Lane Junction Improvement
- A13/A117 Junction Improvement
- A14 M11—A10 Widening
- A 19 Norton—Parkway Interchange Improvement
- Al (M) Alconbury—Peterborough
- Al (M) Baldock—Alconbury
- Al (M) Ferrybridge—Hook Moor Improvement
- A2 Lydden—Dover Improvement
- A205 Catford Town Centre Improvement
- A21 Lamberhurst Bypass
- A23 Handcross—Warninglid Improvement
- A249 [wade Bypass—Queenborough Improvement
- A259 Bexhill and Hastings Western Bypass
- A259 Guestling Thorn and Icklesham Bypass
- A259 Winchelsea Bypass
- A27 Worthing—Lancing Improvement
- A2/A282 Dartford Improvement
- A3 Hindhead Improvement
- A30 Honiton to Exeter Improvement
- A303 Amesbury—Berwick Down Improvement
- A303 Sparkford—Ilchester Improvement
- A30/A303 Marsh Honiton and A35 Honiton Eastern Bypass
- A34 Chieveley/M4 Junction 13 Improvement
- A34 Newbury Bypass
- A35 Chideock/Morcombelake Bypass
- A35 Tolpuddle—Puddletown Bypass
- A36 Salisbury Bypass
- A40 Western Circus Junction Improvement
- A417 North of Stratton—Nettleton Improvement
- A419 Blunsdon Bypass
- A419 Latton Bypass
- A419/A417 Cirencester and Stratton Bypass
- A43 Geddington Bypass
- A43 Moulton—Broughton Improvement
- A449/A456 Kidderminster, Blakedown and Hagley Bypass
- A453 Clifton Lane Improvement
- A46 Alcester—Stratford Improvement
- A5225 Wigan—Westhoughton Bypass
- A556(M) M6—M56 Link Improvement
- A564 Derby Southern Bypass Contract A
- A564 Doverridge Bypass
- A595 Parton—Lillyhall Improvement
- A6 Clapham Bypass
- A63 Castle Street Hull Improvement
- A65 Hellifield and Long Preston Bypass
- A65 Manor Park Bends Improvement
704 - A69 Haltwistle Bypass
- A6(M) Stockport North/South Bypass
- Western Orbital Route
- M1 Junctions 10–15 Widening
- M1 Junctions 25–28 Widening
- M1 Junctions 6A–10 Widening
- M11 Junction 5 North Facing Slip Roads
- M2 Junctions 1–4 Widening
- M23 Junctions 8–9 Widening
- M25 Junction 15–16 Link Roads
- M25 Terminal 5 Spur (HEATHROW)
- M4 Junctions 8(9)–10 Widening
- M6 Junctions 11A–16 Widening
- M6 Junctions 16–19 and 19–20 Widening
- M63 Junctions 6–9 Widening