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Road Construction

Volume 114: debated on Monday 6 April 1987

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asked the Secretary of State for Transport if he will publish the cost-benefit analysis formula for urban and rural major road building.

The formulae used in assessing major rural trunk roads are given in the COBA 9 and the QUADRO manuals which are published by the Department of Transport. For major urban road schemes there is no single set of formulae which adequately cope with all the circumstances and complexities of urban road appraisal. A more flexible approach, in line with the SACTRA recommendations, is used in urban road appraisal.I am placing copies of the COBA 9 and QUADRO manuals in the Library.