This study is concerned with the development
of models for total and commodity freight by road and
by rail originating from and terminating into the
different regions of the U.K., as well as from and into
134 composite zones of these regions.
Previous work is reviewed and improvements
in freight generation modelling are sought in providing
a conceptual framework, investigating a wider range of
variables than hitherto and in tackling some statistical
shortcomings in previous studies viz. the violation of
assumptions that underly the use of ordinary least
squares method and the effects of spatial and industrial
The main techniques used are regression
analysis, principal component analysis and covariance
analysis. The accessibility variables, however, are
derived from the calibration of the group locational
surplus maximizing model.
The models are critically discussed and an
attempt to relate the results to location theory is made.
Subsequently the potential for future research and some
planning implications are outlined.
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.