Skip to main content

Green light for traffic signal performance

A revamp of traffic light maintenance is helping to reduce congestion, save money and improve safety on Greater Manchester’s roads, according to the latest figures from Transport for Greater Manchester (TfGM), which is responsible for all 2,400 traffic signals across the region. These show that the number of incidents of traffic signal failure has steadily declined over the past three years. Between July 2015 and April 2016, there was an average of 413 signal fault faults per month. This is 24 per cent
June 24, 2016 Read time: 2 mins
A revamp of traffic light maintenance is helping to reduce congestion, save money and improve safety on Greater Manchester’s roads, according to the latest figures from 817 Transport for Greater Manchester (TfGM), which is responsible for all 2,400 traffic signals across the region.

These show that the number of incidents of traffic signal failure has steadily declined over the past three years. Between July 2015 and April 2016, there was an average of 413 signal fault faults per month. This is 24 per cent lower than the monthly average of 527 recorded between July 2014 and June 2015 and 48 per cent less still than the average of 795 recorded between July 2013 and June 2014.

The improvement comes, primarily, from upgrading the region’s signals with low energy and low maintenance LED ‘aspects’ – the optical unit that displays the signal colour. This project was carried out by TfGM’s traffic signal maintenance contractor, Siemens, and was completed in April 2014.

The aspect replacement project is expected to save US$13.6 million (£9.8 million) over the first ten years by reducing both the need for regular maintenance and energy consumption. The improvement also comes from Siemens working in a more efficient manner, focusing more on pre-emptive maintenance rather than reacting to faults.

TfGM Committee Chair, Councillor Andrew Fender, said: “Traffic signals are a vital part of the region’s highways network, and through them we help to manage 2.1 billion trips on the Greater Manchester road network each year, so it’s excellent news that they are performing almost twice as well as they were three years ago and costing less money to run and maintain.

“We’ll continue to review and, where possible, further improve our signal maintenance procedures to help make sure that there are even fewer traffic light failures in the future.

For more information on companies in this article

Related Content

  • Audi brings ‘green wave’ tech to Düsseldorf
    February 4, 2020
    Audi is bringing its Traffic Light Information service to the German city of Düsseldorf to provide drivers with information on around 150 traffic lights. 
  • Sharjah looks to smooth traffic flow 
    August 9, 2022
    Kapsch TrafficCom installing system to speed vehicle progress and cut emissions
  • Cost benefit analysis ‘can’t be carried out with a cookbook’
    June 25, 2018
    There is far more to working out the worth of a project than simply filling in a few headings on a spreadsheet. David Crawford surveys some recent thinking from the US and Canada. Cost benefit analysis (CBA) “can’t be carried out with a cookbook”, warns US analyst Professor Robert J Brent. “ You can’t just get out a spreadsheet and fill in the data for all the headings. Each transport CBA should have something that is distinctive, in terms of location (for example, for a rural area), types of user
  • Next-gen LED LightBar System
    January 31, 2012
    Cooper Lighting has upgraded its outdoor LED LightBar technology to improve lumen output and efficiency, while continuing to offer up to 75% in energy savings over traditional high intensity discharge (HID) outdoor lighting sources.