Abstract

Summary Travel time savings are usually the most important utility component in transport infrastructure project evaluation. One of the controversial issues in research on the valuation of travel time savings is the assessment of small time savings. This article goes into this matter with specific focus on indifference thresholds in discrete choice models. Our research shows, if such thresholds exist, valuation of time savings should be differentiated according to the size of the time saving. In particular, small time savings should be valued at a lower rate than large ones. Consequences and criticism regarding this procedure are discussed. We find similarities to the currently applied evaluation methodology in the German Federal Infrastructure Plan.

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