By Vincent Piron Vinci Group, Department of Concessions, Director of Strategy and Development In our previous studies on toll facilities, we pointed out that existing toll systems throughout the world tended to conform with the...

VINCENT PIRON Director of Strategy and Development Concessions Department Société Générale d’Entreprise, Graduate of Ponts et Chaussées Engineering School The population shift from the countryside to the towns has been a gradual...

This article follows those published in “Transports” N° 377 and 379, concerning time values and traffic models in urban areas. Introduction The development of the market economy has lead to an increasing proportion...

BY VINCENT PIRON Director of strategy and development, concessions department, Société Générale d’Entreprises (SGE) From the standpoint of living circumstances, the major changes of the last century were the development of...

How can the profitability of a transport infrastructure be evaluated ? The time used to be when growing traffic demand could be satisfied by building free roads, toll roads, railroads, and airports, all to the same destination,...