The sensors and traffic signals are an additional cost. Kuzbari estimates the price for each wire loop of sensors is between $350 and $500. In a busy four-lane intersection, for example, there are up to 40 sensors embedded in the ground, and some have more than one loop. "Potentially you could end up with as many as 100 loops of sensors at a cost of $350 each," Kuzbari said. "The streets surrounding Ikea's new store are under construction to install fiber cables and traffic signals, but the sensors and camera won't be installed until later this year, and we'll integrate the system into our computer software around mid 2006."
Caltrans established the Smart Corridor Initiative to battle a growing traffic problem and is funding the upgrade to a more advanced traffic management system throughout the Bay area. The technology already is installed at various intersections in three northern California cities – Dublin, Pleasanton and Livermore – within Alameda County. The project was made possibly through a federal grant for $3.5 million about two years ago.