Abstract
This paper uses a Monte Carlo computer simulation to compare uniform tolls on a congested facility against a price-discriminating toll collection scheme which could provide a highly priced express lane and lower priced slower lanes. The simulation, which is based on an example using the San Francisco/Oakland Bay toll bridge, illustrates that consumers would gain if uniform tolls were replaced with discriminatory tolls. The apparent policy conclusion is that price-discriminating user fees on crowded facilities with rationing by queues should be given due consideration.