Abstract
Practical implications of travel cost are not so well-known. The effect of differing levels of misperception of travel on the levels of the travel demand, on the magnitude and location of network traffic flows, and on the net social benefits derived from a Eistal traffic restraint policy, is illustrated. Marginal social cost pricing is used as the basis of restraint policy in view of its simplicity and its broad impact on flow and demand to ensure that the general conclusions are more widely relevant.