Author： Lewis J. Parry
Publisher： Routledge Ltd
ISSN： 1360-0591
Source： Regional Studies: The Journal of the Regional Studies Association, Vol.5, Iss.3, 1971-09, pp. : 145-155
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Abstract
Parry Lewis J. (1971) Mis-used techniques in planning: The forecasts of Roskill. British leisure passenger's: The Commission's Method, Reg. Studies 5, 145–155. The Roskill Commission produced forecasts of passengers using airports in the London system. This paper describes and criticises the method of forecasting. Some of the criticisms relate to fairly common mis-use of regression methods in geographical and forecasting studies. A key criticism is that a wrong measure of accessibility has been used. It is also argued that combining a cost-benefit analysis with a gravity model raises difficult problems of interpretation.
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