So public officials are searching for strategies to use existing highway capacity more efficiently. Recently they’ve begun experimenting with a new strategy for controlling congestion: demand-based pricing of scarce road capacity. Congestion pricing promises to kill two pigs with one bird, keeping traffic flowing smoothly while simultaneously generating new revenue that can be used for public investments. New technologies—notably RFID transponders and license-plate-reading cameras—are allowing the replacement of traditional tollbooths with cashless tolling at freeway speeds.
More>>