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

  • Traffic cameras embrace AI
    December 19, 2022
    Artificial intelligence is spreading into many aspects of mobility – but what about traffic management and enforcement cameras? ITS International invited a few vision experts to ponder a couple of leading questions…
    Read More
  • Utah Department of Transportation: How we’re using traffic analytics software
    February 4, 2025
    Our use of Iteris ClearGuide lets our traffic operations engineers interpret critical probe traffic data without the need for statisticians and software developers
    Read More
  • San Diego to spend US$163 million to beat congestion
    August 26, 2015
    Aiming to fight worsening traffic congestion on San Diego’s roads, city officials have created a US$163 million master plan to install modern stoplight timing systems and other advanced technologies that combat gridlock, says the San Diego Union-Tribune. The master plan, the first of its kind in city history, comes as many neighbourhoods are bracing for more dense developments to absorb the region’s growing population. In addition, recent analysis by the San Diego Association of Governments shows that
    Read More
  • Intelligent parking guidance relieves congestion, reduces costs
    July 24, 2012
    O R Tambo International Airport, near the city of Johannesburg, is the largest airport in Africa. It serves as the primary airport for domestic and international travel to/from South Africa and is one of 10 airports operated by Airports Company South Africa (ACSA). This airport places a massive demand on road infrastructure and parking facilities since a majority of travellers get to the airport by motor vehicle. The demand for parking left many people searching for a parking space for eight minutes or more
    Read More

Highlighted Content