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

  • Bristol’s buses trial CycleEye detection system
    July 7, 2017
    Fusion Processing’s Jim Hutchinson looks at a two-year trial of the company’s cyclist detection system. Is cycling in a city dangerous? Well, that depends where you are and how you view statistics. Malmö is far more bike-friendly than Mumbai and the risk can either be perceived as small - one death per 29 million miles cycled in the UK in 2013 - or large - that equated to 109 deaths in the same year. Whatever your personal take on the data, the effect of these accidents can be felt indirectly too. News of c
  • Driverless vehicles will cause changes in society
    May 31, 2013
    Paul Godsmark gives his views on what the advent of autonomous vehicles would mean for the wider society. Further to your article ‘Driver not required…’ in the Jan/Feb edition of ITS International which gave some great background to autonomous road vehicle (ARVs), I feel that the bigger picture is needed to aid understanding. There is a ‘technology freight train’ heading our way that is going to transform our roadways but we don’t seem to be aware of it and, therefore, are in no hurry to react.
  • Innovia & The Ray feel the pulse
    March 15, 2022
    Getting drivers to slow down and space themselves safely on the road is a problem – but a collaboration between Innovia Technology and The Ray may have found a new way to do it
  • Smart Cities put people, prudence and businesses before technology
    December 4, 2014
    Caroline Haynes tells ITS International that transport planners and equipment suppliers need to adopt different thinking and the smartest cities don’t call themselves smart. The term Smart Cities has been around for some time and has become something of a catch-all term applied to novel or futuristic technology deployed in an urban setting.