r manual or automatic methods (45-47). If an effective system of congestion pricing was instituted, peak hour traffic would be expected to drop 10-25% (45-47). Congestion pricing is an advantageous technique of controlling traffic because it reduces congestion, raises economic productivity, decreases pollution levels, preserves drivers freedom of choice, saves the government from expensive construction costs, and provides revenues (Rauber 45-47). However, despite the plethora of advantages of congestion pricing, a few disadvantages exist which could lead to its downfall. The burden of congestion pricing would fall on lower-class citizens, who may have to wait until peak traffic periods conclude before they can afford to pay the toll (Rauber 45-47). Also, systems of congestion pricing may be difficult to pass through Congress (45-47). A congestion pricing demonstration project is currently planned for the Bay Bridge in the San Francisco area (Rauber 45-47). Drivers currently pay one dollar to cross the Bay Bridge between Oakland and San Francisco (45-47). The bridge tolls may rise, however, to three or four dollars during morning rush hours (45-47). Experts have theorized that this will give drivers an incentive to use other methods of transportation (45-47). Several smaller but quite effective systems of tolls have also been established which help to ease the traffic congestion problem. The DRIVE program consists of a special electronic meter which is fitted into each vehicle (Mogridge 49). The driver is charged extra if he consumes too much time on the highways and finding a place to park (49). Also, a system of urban tolls has also been instituted in some cities (49). This plan would allow vehicles to enter the city based on their license plate numbers (49). Although this project failed in London, it proved quite effective in Singapore, demonstrating its effectiveness and the vigor of new practices of toll collection in general (49). ...