San Francisco rolls out IPS Parking Meters
11-Aug-2010
San Francisco has started to replace over 5,000 parking meters with the 'smarter' new IPS meters that automatically adjust parking rates based on demand and free spaces. The parking space are fitted with sensors that monitor availability, it also means that drivers will be able to search for available parking spaces via their phone or computer before embarking on their trip.

http://www.engadget.com/2010/08/07/san-francisco-rolls-out-new-smart-parking-meters-with-demand-re/
Images courtesy of SFMTA_sfpark's photostream on Flickr
http://www.flickr.com/photos/sfmta_sfpark/with/4837955795/
