Impact assessment of transportation investment policy is a challenging task as assessment outcome is sensitive to various attributes such as methodology, time period, scale and location of analysis. This study is conducted to evaluate regional impact of public transportation infrastructure in...

Previous work on transportation investments has focused on average impacts in high- and middle-income countries. We estimate average and heterogeneous effects in a poor continent, Africa, using roads and cities data spanning 50 years in 39 countries. Using changes in market access due to distant...

Strictly speaking, tolls are not a modern invention. Tolling is, in fact, an ancient tradition, with its origins rooted in history. Tolling has served numerous and wide-ranging purposes across the ages. While initially providing right of way, tolls were later used to finance the building and...

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...

Ex-post evaluation is important to improving the delivery of transport policy objectives. It can be used for multiple purposes at the core of which is the improvement of ex-ante assessment. A small number of jurisdictions employ ex-post evaluation systematically and leading experience is...