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

  • New solutions for catching texting drivers
    October 28, 2016
    Many countries have laws prohibiting texting while driving but enforcement is proving difficult – David Crawford looks at some new approaches being tried by authorities. Finding definitive solutions – technological, regulatory and educational - to the potentially lethal practice of people driving while using mobile phones is proving elusive, while the stakes grow higher.
  • Q-Free unveils WiM classification solution
    March 24, 2021
    Hi-Trac TMU4X is intermodal and expected to integrate with cycle and pedestrian monitoring
  • Intelligent Transport System for Australia's Monash Freeway
    May 14, 2013
    Sluggish peak-hour traffic on Melbourne's busiest road, the Monash Freeway, will flow about 20 km/h faster when new technology is introduced, thanks to a US$78.2 million cash injection from the Australian Government to help improve traffic flow, with the money to go towards installing and upgrading intelligent transport systems on a 34.5-kilometre stretch of the road in Melbourne's east. The commitment is intended to be matched by the Victorian government and will go towards technology such as variable spee
  • New changes could cut Britain's 4.6 million road signs
    May 2, 2014
    New plans to allow local councils in Great Britain the freedom to cut down the number of road markings and signs have been announced by Roads Minister Robert Goodwill. The changes are included in a new consultation which also contains proposals for clearer road markings and new low-level signals for cyclists which will help improve safety on the roads.