Further, the MTA has pledged to use the real-time availability data to set the price of street parking such that 15% of spaces on any given block are free at any given time. In other words, if a block is consistently full of parked cars, the price of parking will be raised until an average of 15% of spaces are empty. The prices will change no more often than monthly in order to avoid freaking the delicate motorist class out, but the website is already publishing parking data in real time.
And so I give you April 27th, 2011, as seen by SFPark. Enjoy: