In order to evaluate the effect on car movements of road information transmitted by terminals on board vehicles, the SIER and INRETS, with the technical support of the SRILOG company, realized within the framework of the CITIES project a study aiming at modelling the choice of itineraries by drivers. From the inquiries made to the drivers having experimented with vocal or visual road information terminals, on their home-to-work trip, a behavioral model describing in particular the changes of itinerary according to the information received was established. This model was later transposed into a global model using INTEGRATION software. Several scenarios, varying in particular the rate of equipment of drivers with onboard systems (5%, 10% and 15%), were tested. The results show the positive, although limited, effect of onboard terminals on the global fluidity of the network. Among the three rates tested, the 10% equipment rate constitutes an optimum which maximises the collective gains.
Samenvatting