Siemens launches one-watt traffic signal

Siemens claims to have improved the energy efficiency of traffic lights by more than 85 per cent by using what it calls one-watt technology. The first pilot projects are already running in Bolzano, Italy and Bietigheim-Bissingen near Stuttgart in Southern Germany.
July 1, 2016 Read time: 1 min
Siemens launches one watt traffic signal

189 Siemens claims to have improved the energy efficiency of traffic lights by more than 85 per cent by using what it calls one-watt technology. The first pilot projects are already running in Bolzano, Italy and Bietigheim-Bissingen near Stuttgart in Southern Germany.

According to Siemens, a typical intersection with bulb-based technology and around 55 traffic signals (red, amber and green) can now avoid more than 6,000 kilograms of harmful carbon emissions a year. One-watt technology uses digital LED driver modules, which Siemens says eliminates the need for load resistors and switching elements in the signal light units which consume most of the energy.

Compared with the 60 watts sometimes consumed by incandescent bulbs, the electricity required by individual traffic light signals can be cut to just one or two watts. State-of-the-art LEDs with extremely low power consumption still retain full light intensity, while the one-watt light units also reduce service costs.

Urban Traffic Control

For more information on companies in this article

Related Content

  • Audi traffic light recognition technology
    March 11, 2014
    Audi is ready to add a little oil to the wheels of the daily grind with advanced traffic light recognition technology which could make driving through towns and cities far more fluid. Audi Online traffic light information harnesses the power of in-car internet in a new way via Audi connect to establish a link between the car and the traffic light network via the central traffic computer in each town or city. It quickly assimilates the automated traffic light change sequences in the vicinity, and on the a
    Read More
  • Pollution has more than one solution
    April 7, 2014
    Professor Alexander Baklanov of the World Meteorological Organization talks to Colin Sowman about the difficulties of reducing urban pollution. The inhabitants of Beijing have recently been suffering pollution levels 20 times the World Health Organisation’s recommended limit while the European Union is revitalising its efforts to implement and enforce air quality standards. Almost inevitably much of the clean-up efforts are likely to focus on traffic planners and engineers.
    Read More
  • Study reveals in-car devices aid positive changes to driver behaviour
    December 3, 2012
    The results of a four-year study by the Field Operational Tests of Aftermarket and Nomadic devices in Vehicles (TeleFOT) Consortium were presented at a recent conference in Brussels. The study focused on the assessment of the impact of driver support functions provided by in-vehicle aftermarket and nomadic devices on driving and driver behaviour. Coordinated by the Technical Research Centre of Finland (VTT) and with a budget of US$19.5 million, the four-year TeleFOT project is one of the biggest traffic IC
    Read More
  • Lidar lets planners see big picture in Chattanooga
    April 14, 2025
    The city of Chattanooga, Tennessee, is attempting to make its streets safer by using the largest deployment of Lidar-based traffic detection in the US. Adam Hill reports…
    Read More

Highlighted Content