ADOT installs new sensors to help track freeway traffic flow

Arizona Department of Transportation (ADOT) is installing new in-road sensors along the state’s freeways to monitor traffic flow in an effort to reduce congestion. The sensors provide the data used to estimate the travel times that that are displayed on message boards above freeways. The data also helps ADOT and the Maricopa Association of Governments, the regional transportation-planning agency make decisions about future freeway improvements. Using electronic wires embedded in the road, the sensors have b
May 19, 2017 Read time: 1 min
6576 Arizona Department of Transportation (ADOT) is installing new in-road sensors along the state’s freeways to monitor traffic flow in an effort to reduce congestion.


The sensors provide the data used to estimate the travel times that that are displayed on message boards above freeways. The data also helps ADOT and the Maricopa Association of Governments, the regional transportation-planning agency make decisions about future freeway improvements.

Using electronic wires embedded in the road, the sensors have been used along many Valley freeways for years. The current project is installing additional in-pavement sensors as a more reliable replacement for acoustic devices that are mounted on poles.

When the sensor-installation project is completed, more than 85 locations on Phoenix-area freeways will have new traffic-flow sensors.

Detection, Monitoring & Machine Vision

For more information on companies in this article

Related Content

  • Bluetooth traffic monitoring
    May 23, 2012
    Clearview Traffic has announced the Golden River M830, a new low-cost journey time monitoring and queue detection solution based on Bluetooth device recognition. A single unit detects and uniquely identifies multiple vehicles simultaneously across all lanes and in both directions. The company claims that on a dual carriageway the cost of an installed site is as little as 10 per cent of an equivalent ANPR installation.
    Read More
  • Abu Dhabi seeks safe and efficient multi-modal ITS solutions
    December 17, 2014
    Abu Dhabi’s Department of Transport is planning to roll out its second phase ITS Strategy and Action Plan through to 2019 which will deploy a host of innovative multimodal ITS solutions. The United Arab Emirates (UAE) is continuing to experience rapid growth in both its economy and population and none more so than its capital, Abu Dhabi. To cope with the current expansion, and in anticipation of future growth, the Abu Dhabi Surface Transport Master Plan has been devised by its Department of Transport and th
    Read More
  • Making the case for ALPR in enforcement
    February 2, 2012
    Federal Signal's Brian Shockley uses examples from around the world to make the case for the greater use of automatic license plate recognition technology in the US. It is time, he says, to consider the possibilities of a national network and the use of average speed enforcement
    Read More
  • Arizona dust settles with Vaisala
    December 20, 2022
    PWD10 visibility sensors and RWS200 system make driving safer on wind-blown highway
    Read More

Highlighted Content