16. ""Traffic Appraisal Manual"" Department of Transport, May 1981.
17. Departmental pamphlet on COBA Getting the Best Value for Money"".
18. Technical Memorandum H6/74 ""Design Flows for Motorways and Rural All-Purpose Roads"".
19. T/A 20/81 ""Junctions and Accesses: The Layout of Major/Minor Junctions"".
20. T/D 9/81 ""Highway Link Design"".
21. The M42 Birmingham - Nottingham Motorway (Catshill and Lydiate Ash to Monkspath Section) and Connecting Roads Scheme 1976 - SI 1976 No. 1289.
22. The M40 London - Oxford - Birmingham Motorway (Umberslade to Warwick Section) and Connecting Roads Scheme 1976 - SI 1976 No. 1290.
23. Report of Major-General R C A Edge 12 June 1975 into M42 Bromsgrove Section and M40 Warwick Section Inquiries held June 1973 to January 1974
24. Secretary of State's decision letter of 19 August 1976 relating to M40 Warwick Section and M42 Bromsgrove Section.
25. Report of Air Marshall Sir Michael Giddings 27 September 1980 into M42 Bromsgrove Section Inquiry held in 1979 and 1980.
26. Secretary of State's decision letter of 17 December 1981 relating to M42 Bromsgrove Section.
27. Leitch Report ""Forecasting Traffic on Trunk Roads: A Report on the Regional Highway Traffic Model Project"" December 1979.