High-tech parking meters premiere in S.F.

Starting early next year, parking officials will start adjusting the meter rates and time limits to gauge how that influences behavior. More than 8,000 wireless sensors will be embedded in the asphalt to monitor empty spaces and the amount of time each vehicle stays parked in one spot.

Rates will be adjusted based on demand.

The public will be able to track real-time parking availability online and with smart-phone applications starting next year. Electronic signs will also direct drivers to open spots.