Papers of the Seminar on Highway Design are presented. The Seminar was divided into the following sections: (1) the planning of highways; (2) public inquiries; (3) highway design: environmental inquiries; (4) the detailed road design process; and (5) highway design-soils. The following papers were presented at the seminar: Highway planning and structure planning - how far a common process? Hack, JS; Highway planning - are structure plans relevant now? Cooper, JB; The economic consequences of the Severn bridge, Thomas, RE; The Swindon-Milton Keynes feasibility study - route selection at the regional level, Simpson, P; Driver discomfort on the M1 motorway, Cornwell, PR; Public inquiries: for whom the road tolls, Hamer, M; Public inquiries into road schemes - the role of the advocate, Burford, JM; Technical evidence for public inquiries, Newland, RM; The benefits of highway schemes, Phillipson, R; The social impact of road schemes, Grove-White, R; Public inquiries - environmental issues, Woods, PC; Practical environmental evaluation, Evans, JVS; Some ecological aspects of highway design, Bickmore, CJ; The environmental assessment of major inter-urban road schemes, Jefferson, JR; Methods for combined optimisation of design, construction and system performance : applications to road engineering problems, Corradini, G; Pajewski,LA; Scoccia, G; Volpe, R; Narrow bend horizontal optimisation of highways - program Noah, Knight, JR; M6 motorway, strengthening of Stafford by-pass, Pickles, JD; Ground model accuracy, Craine, GS; Heatherington, S; The aesthetics of bridge design, Bergg, J; The A420 Fadringdon by-pass site investigation, Foster, CJ; Contractual aspects in relation to earthworks and soils, Derbyshire, D.
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