Dynamic Parking

Los Angeles is planning to undertake a year-long experiment in demand-based pricing on parking in its downtown. The dynamic parking system will be put in place next summer.
Aug 24, 2010   Los Angeles Times
Explaining the mechanics of market-based parking can be pretty dry, if not outright wonkish. SF Park livens up the topic with (bike) bells, horns and cute, animated graphics in a new video.
Aug 11, 2010   SF Streetsblog