ITLS Working Papers: Recent submissions
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Combining Sources of Preference Data
Published 2000-07-01Mixtures of revealed preference and stated preference data are recognised by transportation researchers as offering a richness of behavioural input to travel choice modelling that is often absent from the isolated use of ...Open AccessWorking Paper -
The Sensitivity of the Valuation of Travel Time Savings to the Specification of Unobserved Effects
Published 2000-07-01The behavioural value of travel time savings (VTTS) remains a controversial data item in the evaluation of transport projects. Over the last 40 years we have seen numerous empirical studies seeking to enrich our understanding ...Open AccessWorking Paper -
Transport and Economic Growth
Published 2000-07-01There is a perceived wisdom that transport provision (especially of roads) is an essential pre-requisite for economic growth which has tended to justify a “predict and provide“ approach to the provision of roads. The ...Open AccessWorking Paper -
The Valuation of Travel Time Savings for Urban Car Drivers: Evaluating Alternative Model Specifications
Published 2000-03-01The empirical valuation of travel time savings is a derivative of the ratio of parameter estimates in a discrete choice model. The most common formulation (multinomial logit) imposes strong restrictions on the profile of ...Open AccessWorking Paper -
Transport planning, markets and government: challenges for the future
Published 1992-03-01Open AccessWorking Paper