1. DoT, 1997. National Road Traffic Forecasts (GB) 1997 London, Department of Transport.
2. DETR, 1998a. New deal for transport: better for everyone. The Governments’ White Paper on the Future of Transport, London, The Stationery Office CM 3950.
3. DETR, 1998b. Guidance on the New Approach to Appraisal, London, DETR.
4. DETR, 1998c. Breaking the Logjam. The Governments’ consultation paper on fighting traffic congestion and pollution through road user and workplace parking charges, London, HMSO.
5. DETR, 1999. From Workhorse to Thoroughbred. The Governments policy on buses, London, DETR.