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

  • Peachy deal for Juganu in US state of Georgia
    August 30, 2024
    Smart city lighting solutions will be deployed within City of Peachtree Corners
    Read More
  • San Diego to deploy smart streetlights
    February 24, 2017
    The City of San Diego, California, is partnering with GE to upgrade streetlights in a bid to reduce energy costs by 60 per cent as well as transform them into a connected digital network that can optimise parking and traffic, enhance public safety and track air quality. The City will be installing 3,200 smart sensor nodes that can use real-time anonymous sensor data to direct drivers to open parking spaces, help first responders during emergencies, track carbon emissions and identify intersections that c
    Read More
  • MIT study combines traffic data for smarter signal timings
    April 1, 2015
    Researchers at Massachusetts Institute of Technology (MIT) have found a method of combining vehicle-level data with less precise, but more comprehensive, city-level data on traffic patterns to produce better information than current systems provide. They claim this reduce delays, improve efficiency, and reduce emissions. The new findings are reported in a pair of papers by assistant professor of civil and environmental engineering Carolina Osorio and alumna Kanchana Nanduri, published in the journals Tra
    Read More
  • Siemens delivers pedestrian countdown at traffic signals
    March 18, 2016
    Siemens’ new Pedestrian Countdown at Traffic Signals (PCaTS) informs pedestrians how long they have to cross the road after the green man signal has gone out, by providing a visible countdown of the time remaining before the appearance of the red man.
    Read More

Highlighted Content