Overload vehicles may cause direct damage or even destruction to roads, and control of traffic of such vehicles should be improved. Based on the equity of vehicle induced costs and using the method of thickness increment, this paper provides an analysis of required extra expenses associated with the use of highway by overload vehicles, and of the lost revenues of road toll which should otherwise have been collected from these Vehicles. All costs thus incurred are then allocated on the basis of level of damaging effect of various overload vehicles on pavements. Finally a standard of compensatory costs is proposed which would be levied on these vehicles.
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