Ottawa’s O-Train South Extension, formerly the Trillium Line and now known as O-Train Lines 2 and 4, entered passenger service this week. The new north-south line will expand system capacity, enhance connectivity, facilitate and reduce commuting times by alleviating traffic congestion and foster a cleaner environment.
The South Extension reached a significant milestone last year with the completion of its major construction phase. With construction work wrapped up, the project entered the Trial Running phase, where the system underwent a series of tests to ensure it was operating as intended. During the 14-day passenger service phase, TransitNEXT scored a 99.5 per cent rolling average.
The second phase of Trial Running allowed for the operations teams to perform various scenarios that are typically encountered during regular service. These included door issues, stopped trains, service on only one platform and track, changing of trains, and other items. With Trial Running successfully complete and the substantial completion certificate received, the Lines 2 and 4 started with weekday service on January 6. The line is using Stadler FLIRT trains.
Developed in partnership with the City of Ottawa, AtkinsRealis’ owned TransitNEXT team was responsible for the design and delivery of the project and will maintain the system for 27 years.
“AtkinsRéalis is honored to have contributed to the end-to-end delivery of this important transportation project, which will significantly improve mobility for citizens in the capital region and strengthen Ottawa’s economy,” says Stéphanie Vaillancourt, President, Canada. “We remain committed to delivering infrastructure projects that increase urban mobility and sustainability. By engineering a better future for our planet and its people, we lead the way in creating infrastructure that benefits communities worldwide, drives economic growth and supports energy transition.”
The project included the redesign and renovation of the existing guideway and stations, the addition of two new stations, extensive upgrades to historic infrastructure, and the refurbishment of the former Trillium Line train fleet, which will continue to operate along the new airport link known as O-Train Line 4. Along the mainline, O-Train Line 2, TransitNEXT was responsible for the south extension of the guideway, laying a total of 28.6 kilometres of new track, and the addition of new bridges, 4 new stations south of Greenboro Station, LEED-Certified Maintenance and Storage Facilities and a new signaling and train control system. The newly completed system now offers a main line that extends to communities in Riverside South and a 4.2-kilometre link to Ottawa International Airport.
“On behalf of AtkinsRéalis, I would like to congratulate the City of Ottawa for its commitment to providing safe, affordable and accessible transit options for its citizens and visitors, it is a vision that our TransitNEXT team has been honoured to make a reality,” Bob Alger, President of LSTK Projects.
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