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

  • Dynamic Message Signs : Don’t replace, refurbish and upgrade
    August 12, 2015
    Refurbishing old dynamic message signs can save money and increase technical capabilities as David Crawford discovers. Evidence is growing on both sides of the Atlantic of the scope for retrofitting old or technically out-of-date dynamic message signs (DMS) with new electronic equipment, to save on the costs of installing full-scale replacements. In the last four months of 2014, a number of US states progressed programmes that achieved savings of more than US$1.75 million (€1.56million).
    Read More
  • Centralised traffic control, managing changing traffic demands
    January 23, 2012
    Paul van Koningsbruggen and Dave Marples of Technolution BV describe, using a national example from the Netherlands, how smart add-ons to traffic control centres combine to increase cross-centre capabilities and cost-efficiency. Increasingly, traffic management is becoming the natural partner of the civil engineer, improving flows over existing infrastructure to deliver an alternative to laying more blacktop. As in any emerging market, the first steps towards mature traffic management have not necessarily r
    Read More
  • Evolucia introduces next generation LED roadway lighting
    December 24, 2012
    Manufacturer of LED (light emitting diode) lighting products, Evolucia, has launched its next generation of LED replacement roadway luminaires. They claim the new Evolucia G2 aimed optics LED Cobra Head roadway luminaires offer substantially increased light efficacy when compared to traditional lighting technologies such as high intensity discharge (HID). "The G2 Evolucia Aimed Optics Cobra Head roadway luminaire packages high quality illumination, long life and extraordinary energy efficiency, a breakthro
    Read More
  • Vehicle ownership - a thing of the past?
    May 22, 2012
    Convergence of electron-powered vehicles with connected vehicle technologies could mean that only a few decades from now the idea of owning a vehicle will be entirely alien to the road user. By Technolution chief scientist Dave Marples with Jason Barnes Even when taken individually, many of the developments going on and around vehiclebased mobility will bring about major changes in transportation. Taken collectively, the transformations we might expect are nothing short of profound. Enumeration of the influ
    Read More

Highlighted Content