Skip to main content

Pilot study on in-car advice of green and blue waves

In the Netherlands, researchers are carrying out a pilot study using the Radio Dynamic Speed Advice (RDSA) app, developed by Dutch company Amaryllo MMG, specialist in radio technology, aided by navigation solution solutions provider NNG, who integrated the app into their software. The study aims to determine how intelligent apps can positively influence human behaviour in traffic. Around 300 participants driving on a busy access road are currently being provided with in-car advice on how to catch green wave
September 21, 2012 Read time: 3 mins
In the Netherlands, researchers are carrying out a pilot study using the Radio Dynamic Speed Advice (RDSA) app, developed by Dutch company 6592 Amaryllo MMG, specialist in radio technology, aided by navigation solution solutions provider NNG, who integrated the app into their software. The study aims to determine how intelligent apps can positively influence human behaviour in traffic.

Around 300 participants driving on a busy access road are currently being provided with in-car advice on how to catch green waves. They are also being warned of approaching emergency vehicles.

When a vehicle involved in the study passes over an inductive loop, the traffic signal control system calculates a recommended speed to allow the driver to arrive at the next traffic signal during its green phase. The control system is equipped with a transmitter that transmits this advice by means of an FM radio frequency of 105.1 MHz. Tucked away in the connecting cable of the pilot study driver’s navigation system is an FM receiver that picks up the signal. The RDSA app displays this advice on the screen.

Staff in an emergency vehicle can use a responder to request the activation of the blue wave. This signal is picked up by the traffic signal control system: the system not only times the traffic signals to turn green for the approach of the emergency vehicle (a service already in use in the Netherlands) but also informs nearby pilot study drivers by means of the FM transmitter.

According to the researchers, say the technology used in the pilot is proven technology and thus highly cost-effective. The transmitters and receivers are inexpensive and easy to implement in existing traffic signal control systems and navigation systems. Modifications in navigation software are also easy to introduce. NNG was already in the process of adapting its navigation software for third-party apps. RDSA is a good example of how this is leading to smart, cost-effective applications.

Other participants in the study include Amaryllo, whose FM transmitter was installed in an existing 769 Imtech-101 Peek Traffic signal control system that was already equipped with the Odysa green wave module from DTV Consultants, Belgian company 6593 Be-Mobile who provided the control platform for the RDSA service, and 6594 Goudappel Coffeng who will be responsible for the evaluation of the pilot study.

For more information on companies in this article

Related Content

  • Terrestrial solution to stellar shortcomings
    December 5, 2013
    Inherent weaknesses in satellite communications are leading several countries to re-evaluate terrestrial-based backup systems. There is a tale frequently told in satellite navigation circles, of how landing systems at Newark Airport were disrupted by a truck driver using GPS jamming equipment as he drove along the New Jersey Turnpike. While there was no threat to flight safety as the interference to GPS reference stations being tested, the story highlights how apparently benign threats have the potential t
  • Dubai metro - the world's longest automated rail system
    July 31, 2012
    David Crawford reviews the recent opening of Dubai's Red Line. The US$7.6bn Dubai Metro, the Phase I Red Line of which started partial operation in September 2009, will be the world's longest driverless rail system on its planned completion in 2011. With a total length of some 75km, it will then overtake the 68.7km Vancouver SkyTrain and be able to carry over 1.2 million passengers on a typical day.
  • GPS delivers accurate journey time data for UTC
    January 27, 2012
    A new solution developed as a consequence of the UK's Freeflow project fuses GPS and UTC loop data to give more accurate predictions of journey times, benefting network managers and travellers alike. By Matt Cowley and Gareth Jones, Trakm8 and John Polak and Rajesh Krishnan, Imperial College London
  • PTV Group opens Mobility Lab
    June 26, 2017
    In cooperation with the City of Karlsruhe, Germany, PTV Group has established a Mobility Lab, where various traffic planning and model solutions will be linked to one another and to other solutions in order to try out new ideas and approaches as well as their effects on cities and regions worldwide.