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Originally published in 1973, this book reports experiments in the modelling of freight flows in Great Britain, on the basis of 78 origin-destination zones covering the entire country. Its central purpose is to establish whether gravity model or linear programming approaches provide the most appropriate way of describing the existing spatial distribution of freight volumes and hence of predicting future flows, given possible allocations of population. Linear programming appears to be the msot useful way to approach freight modelling on this scale. The model outputs allow the authors to probe...