Are There Quantifiable Benefits from Reducing the Variability of Travel Time?



Are There Quantifiable Benefits from Reducing the Variability of Travel Time?

Authors

PORTER S, Department of Transport and WRIGHT I and DALE H, The MVA Consultancy, UK

Description

1.1 The question in our title arises from the UK Department of Transport's interest in the economic benefits of highway and other schemes. We know that highway schemes are likely to change the variability of journey times, as well as the journey times the

Abstract

1.1 The question in our title arises from the UK Department of Transport's interest in the economic benefits of highway and other schemes. We know that highway schemes are likely to change the variability of journey times, as well as the journey times themselves, but there are few research results available for typical schemes and only a limited number of models that consider travel time variability.

1.2 The Department therefore commissioned a study of this topic and this paper describes the findings of the preliminary research. The aim of this phase of the work was to review existing methodologies, formulate a prefered approach (making working assumptionswhere appropriate), and apply the methodology to a selection of highway schemes.

1.3 The research has therefore concentrated on the broad scale of variability benefits (particularly in relation to conventional travel time benefits), and the importance of various contributory components. The views expressed in the paper are those of the authors and should not be attributed to the Department of Transport.

Publisher

Association for European Transport