Skip to main content

Using Bluetooth technology to smooth traffic flow

The Municipality of Randers in Denmark is using Bluetooth technology from Danish company Blip Systems to improve traffic flow in the city. Consultancy company Cowi developed the Cowi CitySense system using BlipTrack sensors from Blip Systems. The popularity of Bluetooth technology makes it ideal for traffic monitoring, as increasing numbers of drivers use Bluetooth-equipped headsets or hands-free systems for their mobile phone. Small boxes with built-in Bluetooth sensors monitor traffic on a 2.5 km long st
December 14, 2012 Read time: 2 mins
The Municipality of Randers in Denmark is using Bluetooth technology from Danish company 3778 Blip Systems to improve traffic flow in the city.

Consultancy company Cowi developed the Cowi CitySense system using BlipTrack sensors from Blip Systems.  The popularity of Bluetooth technology makes it ideal for traffic monitoring, as increasing numbers of drivers use Bluetooth-equipped headsets or hands-free systems for their mobile phone.

Small boxes with built-in Bluetooth sensors monitor traffic on a 2.5 km long stretch around Randers Bridge at Tørvebryggen and Havnegade; each time a driver with a Bluetooth device passes, its anonymous Bluetooth signal has been registered by the sensors, enabling the municipality to monitor the vehicle’s travel time and produce a clear picture of the traffic flow.

“We now use the information to adapt to the new traffic lights so that traffic can move faster during rush hour. When the new signals are set up, we will again conduct research on the stretch to see how it has worked and to possibly make adjustments to the new lights, “says Randers Municipality project manager, Henrik Kaldahl.

“We can use these measurements with great confidence,” says Cowi senior specialist Jonas Olesen. “The challenge of the pilot project in Randers was that cyclists and pedestrians carrying a Bluetooth device became part of the statistics. But with a few modifications, we managed to embed them in the system, enabling us to separate cyclists and pedestrians from cars.  Randers is the first place we have used the system, so it is a kind of pilot project. It has given us some really good experiences and enables us to use Cowi CitySense in virtually all parts of the country,” he said.

For more information on companies in this article

Related Content

  • Zendrive: lunchtime driving in San Francisco riskier than rush hour
    January 23, 2018
    Lunch-hour driving across the San Francisco Bay Area between 11.00am and 2.00pm is riskier than morning and evening rush hour commutes with more than 50% of routes presenting a greater risk to drivers during lunch hour. These latest findings come from Zendrive’s Bay Area Commute Safety Snapshot which also revealed that the San Mateo Bridge is overall more dangerous during morning commutes between 6.00am to 11.00am.
  • Traffic Technology partners with Bluetrace
    April 17, 2012
    Traffic Technology Limited has announced that they have partnered with Bluetrace of The Netherlands, enabling them to introduce an innovative and effective journey time system that simply and cost-effectively meets the challenge of providing the network management performance data required by local authorities. Bluetrace Traffic works in networks with other Bluetrace units to accurately capture the unique MAC address of passing Bluetooth and wi-fi devices, building a network of origin and destination points
  • USDoT pilots show win-win potential for connected vehicles
    December 19, 2017
    Pete Goldin discovers the state of play with connected vehicles trials in the US and the impact of Hurricane Irma on Tampa’s pilot. The US Department of Transportation’s (USDoT’s) connected vehicle (CV) pilot sites have moved into phase 2 of the deployment programme– design, build, test and, maybe most importantly, collaborate.
  • MaaS: 'It's been much easier to convince politicians than we expected'
    August 11, 2021
    As she leaves the Mobility as a Service sector, Piia Karjalainen explains why the user must continue to be the focus – and why we haven’t yet even seen half of the innovations available