Independent report

Factors which affect road traffic

Investigated estimates made in literature on how road traffic changes in response to changes of population growth, income growth and fuel cost.


Road traffic demand elasticities

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The report concludes that:

  • there is no evidence to move from the elasticities implied in the department’s National Transport Model
  • in view of the period since most of the work was done, an updated study of elasticities should be carried out

The report covered 23 sources, for wide evidence coverage, including:

  • academic journals
  • conference papers
  • grey literature

RAND Europe was commissioned by the Department for Transport to complete the review.

Published 15 January 2015