Evaluation of road pricing policy with semi-dynamic combined stochastic user equilibrium model

This study analyzes the effect of road pricing using a model with the following characteristics: 1) integration of trip generation (i.e. activity choice), destination choice, mode choice and route choice; 2) consideration of hourly traffic condition variations including queue evolution; and 3) approximate reproduction of trip chain along the time axis. An evaluation of road pricing in the Nagoya Metropolitan Area shows that pricing leads to an effective improvement in the environment as a result of a reduced number of car trips, and at the same time, there is a great reduction in the number of visitors because there is a change of destination and only a small shift to railway. INTRODUCTION Nagoya City has come to suffer from chronic traffic congestion and air pollution as a result of overdependence on the automobile. Planning and implementation of improvements to the road and railway networks as well as efforts at transportation demand management (TDM) have aimed at achieving more appropriate automobile usage. Recently, a lot of attention has focused on road pricing, which is one policy for TDM, because of the reported great success of examples in Singapore and London. Since road pricing is a policy by which road users are expected to pay charges, it is supposed that travelers including road users would change their choice of route, mode, destination, departure time and even the decision of whether to travel

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