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

  • Smarter transport remains key to smart cities
    January 9, 2018
    Colin Sowman looks at some of the challenges and solutions that will provide enhanced transport efficiency in tomorrow’s smarter cities. However you define a ‘smart city’, one of the key ingredients will be an efficient transport system. As most governments and city authorities face financial constraints, incremental improvements in the existing systems is the most likely way forward. In London, new trains and signalling are improving the capacity of the Underground but that then reveals previously
    Read More
  • Sprawl spreads the costs and confines the benefits
    June 8, 2015
    A new report says car-centric planning leads to inefficient cities and divided communities as lead author Todd Litman explains. Between 1950 and 2050 the human population will have approximately quadrupled and shifted from 80% rural to nearly 80% urban; by the middle of this century the United Nations predicts an additional 2.2 billion urban residents in developing countries than there are today. How these cities grow has huge economic, social and environmental impacts and implementing proper policies can c
    Read More
  • Sprawl spreads the costs and confines the benefits
    June 8, 2015
    A new report says car-centric planning leads to inefficient cities and divided communities as lead author Todd Litman explains. Between 1950 and 2050 the human population will have approximately quadrupled and shifted from 80% rural to nearly 80% urban; by the middle of this century the United Nations predicts an additional 2.2 billion urban residents in developing countries than there are today. How these cities grow has huge economic, social and environmental impacts and implementing proper policies can c
    Read More
  • More for less with traffic control centre technology
    May 31, 2013
    Rich pickings are now available in a maturing market supplying screens and processors for traffic management operations. Jon Masters reviews what’s on offer. Competition in supply of technology for traffic management and control centres has increased significantly in recent years. Suppliers introduced better products and customers are changing the way they operate, which benefits traffic authorities and emergency services alike. These are the views of Electrosonic’s control rooms solutions sales manager Pa
    Read More

Highlighted Content