Light-Emitting Diode (LED) Traffic Signal Retrofit Project

Calgary’s new traffic lights are proving that you can get more for less, with the right technology on your side. On March 19, 2003, The City of Calgary, ROADS began retrofitting all of The City’s existing green, red and pedestrian incandescent traffic signal displays with new energy-efficient light-emitting diode (LED) technology. Once complete, the project will result in an 80 percent reduction in the energy costs associated with incandescent traffic signal operations and will reduce equivalent CO2 emissions by 8,660 tonnes a year. When all intersections have been retrofitted, the project will reduce electricity use by approximately 8 million kWh, generating savings of $670,000 a year. The new traffic lights are also brighter and more durable. The program is being carried out in three phases, with one third of The City’s 730 intersections being retrofitted during each phase. Phase 1 was completed during March, April and May in 2003, entailing the retrofit of traffic signals in 281 intersections. Phase 2 and 3 will take place from March through to May in 2004 and 2005, respectively. Calgary is the first city in Alberta to implement a citywide LED traffic signal retrofit to improve operations and reduce energy consumption.

Session title

CANDIDATURES AU PRIX DE RÉALISATION ENVIRONNEMENTALE DE L’ATC DE 2003 (SÉANCE) 2003 TAC ENVIRONMENTAL ACHIEVEMENT AWARD NOMINATIONS

Organizers

Environment Council

Year

2004

Format

Paper

Download link

 


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