Sensors aim to reduce wait times at lights along Bell Road

Posted at 5:29 PM, Jul 25, 2018
and last updated 2018-07-25 23:06:07-04

Your commute on one of the Valley's most congested roads is getting easier. Sensors are up at 55 intersections along Bell Road, stretching from the Loop 303 in Surprise to Loop 101 in North Scottsdale.

The sensors are detecting how many cars are waiting at signals, then instantly adjusting the length of the light to make sure the traffic is moving. This is a lot different than a normal stoplight which works off a clock system no matter how heavy the traffic is.

All 55 intersections are also able to communicate with each other, so traffic stays moving. 

The Maricopa County Department of Transportation says a typical six-lane road in the Valley sees about 45,000 cars a day.


Bell Road is exceeding 60,000 and is close to reaching freeway capacity which is 72,000 vehicles a day. The county says drivers could see a 20-percent reduction in travel time because of the real-time traffic lights. 

The county is now looking at adding sensors around the University of Phoenix Stadium in Glendale to help with event traffic.