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

  • Canada looks to HOT lanes to tackle congestion
    March 16, 2017
    David Crawford sees an evidence-based approach to HOT lane conversions. Canada’s first high occupancy toll (HOT) lanes opened on 16 September 2016 as a pilot on a 16.5km section of existing high occupancy vehicle (HOV) lanes running in both directions along Toronto’s Queen Elizabeth Way. Promised in two recent budgets
  • Getting more for less from traffic data
    August 15, 2012
    Collection of traffic and transit data has grown significantly, combining with advances in connectivity and computational modelling to good effect. Desire to do more with less – to make budgets go further – has helped create a boom in the collection and study of traffic and transport data. Studies are becoming longer, greater in number and further in-depth as more intelligence is sought, plus, transportation agencies are looking to make processes of data collection less costly, or more efficient.
  • Urban takes IoT Control
    April 27, 2022
    Urban Node 324 Cellular 'works straight out-of-the-box just like a smartphone'
  • Siemens launches Bluetooth journey time monitoring
    July 21, 2015
    Siemens new Sapphire journey time measurement system (JTMS) offers a low cost, simple to deploy solution for recording and analysing journey times and network performance, says the company. The system uses the Bluetooth technology commonly found in mobile phones, aftermarket accessories, in-car communication and audio systems and is compact and simple to install, minimising street clutter. The system is fully integrated into the Siemens Stratos hosted traffic management system, providing all the necessar