This paper compares the survey results of three value of travel time (VTT) surveys conducted in the Netherlands since the late 1980s. It discusses the method used in the Dutch studies for estimating VTT for business travel; the importance of travel time reliability; and the impacts of distance...

Recent performance indicators in the European road freight transport sector show there is an excess capacity. To shed light on this, this paper studies two aspects of capacity utilisation in trucking: the extent of empty running and the load factor. Using a joint econometric modelling framework,...

This paper studies the relationship between reliability (proxied by punctuality) and productivity in passenger railroad services. Increasing reliability may lower productivity, as it requires inputs, that can’t be used to produce outputs. The relationship between reliability and productivity...

This study examines the impact of bilateral air service agreements on air passenger transport in Africa and quantifies the consumer welfare effects associated with air transport liberalization. Using an unbalanced panel of 71 country pairs from Africa observed over 2011-19, the paper estimates...

The logsum is a measure of consumer surplus in the context of logit choice models. In spite of the very frequent use of logit models in transport, project assessment is only rarely done using logsums. Instead in project evaluation or appraisal, changes in transport costs and time (borrowing...