There is a strong economic rationale for close cooperation between the public and private sectors. This has resulted in a significant increase in the demand for the provision of public services through instruments combining public and private money such as public-private partnerships (PPPs or...

This paper provides an overview of some alternative conceptual definitions of travel time variability, discusses their implications about behaviour, and puts them into a broader context, including deviations from the underlying assumptions regarding rational behaviour. The paper then discusses...

Model misspecification is a serious issue since misspecification generally renders statistical inference invalid. However, specification testing of discrete choice models is rarely applied. This paper describes a nonparametric test procedure which uses a combination of smoothed residual plots...

Certains domaines associés aux thèmes discutés ici échappent à mes compétences, comme par exemple l’évaluation des risques et des défauts de sûreté dans les transports. Ce qui m’a convaincu de l’importance de ce sujet, ce sont quelques conclusions très générales, je dirais...