Aarhus municipality uses anonymous data from drivers’ cell phones and GPS to assist them in preventing traffic jams. A drastic 20 percent cut in travel times has already been made.

Many mobile phones, GPSs and other electronic devices have built-in Bluetooth, so that they can communicate wirelessly. Aarhus municipality utilizes BLIP Systems’ technology as an important weapon in the fight against traffic jams.

By placing the small sensors in the road network, the road authorities can obtain traffic flow data in real time and proactively manage the road network to minimize delays and congestion.

The municipality started the project in 2011 and currently has nearly 40 sensors placed on the ring road, says project manager Michael Bloksgaard, at Traffic and Roads. He expects that when the BlipTrack solution is fully implemented by the end of the year, around 120 sensors will have been placed. He has no doubt that BlipTrack will be a great tool for the municipality when it comes to preventing congested roads.

“BlipTrack will be used to locate the areas where we need to optimize routes and identify which roads, motorists can benefit from driving instead,” says Michael Bloksgaard.

He says that they are currently working on making the measurements available for all road users, and that the data could be utilized in apps and online.

The municipality has already benefited from using the solution, and it has helped Traffic and Roads in optimizing out-of-sync intersections. In addition, the Road Administration has been able to record that travel times on the ring road has been reduced by up to 20 percent because of green waves. This leads not only to significant economic benefits for the municipality, through reduced travel times and fuel consumption, but also reduced CO2 emissions and improved air quality.