Assessments of the economic benefits of transportation infrastructure investments are critical to good policy decisions. At present, most such assessments are based of two types of studies: micro-scale studies in the form of cost-benefit analysis (CBA) and macro-scale studies in the form of...

This paper begins by motivating the need for including “wider economic effects” when conducting transport infrastructure appraisal, followed by a discussion of various techniques to do so. The major focus is on studies from the cost function perspective that incorporate spillover benefits...

The debate on whether there are wider economic benefits from transport infrastructure investments continues to cause debate and controversy. This debate occurs both between analysts seeking to find a robust method for identifying and measuring the size of such benefits and between policy makers...

Infrastructure investment represents large capital values, whereas the benefits and other consequences are extended into the future. This makes methods to assess investment plans an important issue. This paper develops a framework in which infrastructure networks are interpreted as determinants...

This paper is concerned with the links between agglomeration, productivity and transport investment. If improvements in transport systems give rise to changes in the mass of economic activity accessible to firms, for instance by reducing travel times or the costs of travel, then they can induce...