Randall Stross, an author and professor of business at San Jose State University, analyzes the current state of smart parking technology and just how useful it is, and to whom.
"The (smart parking) term refers to a beguiling technology, now being tested in several cities, that uses sensors to determine whether a particular spot on the street or in a parking garage is occupied or vacant.
Smart-parking technology for on-street spaces is expensive, and still in its early stages. The largest examples are pilot projects with costs covered primarily by grants from the federal Department of Transportation. In San Francisco, the SFpark pilot project uses sensors from StreetSmart Technology for 7,000 of the city’s 28,000 meters. In Los Angeles, LA Express Park has installed sensors from Streetline for 6,000 parking spots on downtown streets.
Drivers are encouraged to use mobile apps to check parking availability and pricing, though coverage is not universal. Parker, for example, from Streetline, gives detailed information about on-street parking for Los Angeles, but not for San Francisco.
Smart-parking apps aren’t as useful as might be expected for drivers seeking open spots. When a parking space is vacated, there is a short delay before a sensor’s signal moves through the wireless network, reaches the centralized system and finally arrives on a driver’s phone. But if other cars are circling, even a 30-second or one-minute wait can be too long."
"As for parking enforcement, San Francisco and Los Angeles have begun to use the sensor technology to dispatch officers to cars that have stayed past their limits. That’s far more efficient that having officers roam streets in search of random meter violations. Zia Yusuf, the C.E.O. of Streetline, says that without smart parking, “no more than 8 to 10 percent of parking payment violations are ticketed.”
So one would think that more parking citations were being issued, but that's clearly not the case in San Francisco. It would appear that motorists are putting more money into the meters and pay stations (directly or through cell phones) and receiving far fewer citations.
Will Reisman, transportation reporter for the San Francisco Examiner, wrote on Dec. 16: "Instead of drawing in reams of revenue for the San Francisco Municipal Transportation Agency, the SFpark program has actually contributed to a slight loss. The agency expects to receive about $5.5 million less than expected from parking citations this fiscal year, although those losses are offset mostly by an increase of $4.4 million from additional meter revenue. The agency has a total budget of $830 million."