Infrastructures have been traditionally built, maintained and operated by the public sector. Road and railway networks, energy, electricity and water were traditionally designed in public sector headquarters in many countries until the eighties. Since then, and due to fiscal crisis and public...

Airport congestion has been generally dealt in the literature in a similar fashion as road congestion. However, the phenomenon is quite different, because entry at airports is not random. Flight delays are a consequence of system overload, which is linked to profit maximization decisions of...

Private participation in road projects is increasing around the world. The most popular franchising mechanism is a concession contract, which allows a private firm to charge tolls to road users during a pre-determined period in order to recover its investments. Concessionaires are usually...

En la decada de los noventa hemos asistido a un incremento espectacular de la liberalizacion de las politicas de transporte. Lamentablemente, la transicion del gobierno hacia su nuevo papel esta siendo mas complicada de lo previsto, requiriendo ajustes con el fin de garantizar que se obtengan...