We study the efficiency of private supply of roads under demand uncertainty and evaluate various regulatory policies. Due to demand uncertainty, capacity is decided before demand is known but tolls can be adjusted after demand is known. Policy implications can differ considerably from those...

This paper describes a parsimonious approach to the economic analysis of transportation investments. In a gravity model of trade, project benefits may be summarized by a money metric for the change in market access experienced by all cities due to the investment. This metric is equivalent to the...

Road networks are one of the useful indicators through which sustainability of urban sprawl for an existing urban area and for a proposed new urban development area can be measured. Therefore, it is necessary for transportation engineers and urban planners to conduct various studies in this...

Disruption of infrastructure services can cause significant social and economic losses, particularly in the event of a natural disaster. The World Bank Group and the Government of Japan established the Quality Infrastructure Investment Partnership to focus attention on the quality dimensions of...