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By VINCENT PIRON Engineer at the Ponts et Chaussées-Group VINCI-Director of concessions strategy The recent redevelopment of transportation infrastructure project finance, and of public/private partnership co-operation has...

Vincent Piron Strategy Vice President for VINCI Concessions “The primary advantage of economics is its educational role. Building and discussing a model, however imperfect, are not fruitless tasks. They are for the business man...

By Vincent Piron Business Development Director (Vinci Concessions) and Jean Delons Director of the Economics and Traffic Department (Cofiroute) PIRANDELLO®, A NEW TOOL FOR URBAN PLANNING By Vincent Piron Business Development...

More than ever budget pressure is strong in OECD countries and decision makers are focusing on short term financial resources. More than ever those countries need to invest to maintain their level of knowledge and consequently,...

By Rick Kelly 21 October 2005 One would struggle to conceive of a more compelling demonstration of the incompatibility of the profit system with the most elementary requirements of contemporary mass society than the debacle 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,...

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...

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...

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...

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...