Aconex keeps OHL-FCC JV on track with Toronto subway extension

Project name: OHL-FCC Toronto Subway Extension | Industry: Road & RailProject size: US$359 million | Location: Toronto, Canada

As a key component of the C$2.6-billion Toronto-York Spadina Subway Extension, this development involves construction of twin tunnels at the northern end of the new subway and the Highway 407 station. Funded by provincial, federal and municipal governments, the project is adding six new stations and three new commuter parking lots. 


  • Complexity of using tunnel-boring machines in wet sand under high pressure. 
  • Project team of 350 individuals from 252 different organizations. 
  • Requirement for multiple hard copies of every document – more than 200,000 individual documents and growing. 
  • Bidding requirement for nine separate contract books. 


  • Online collaboration platform connecting all participants project-wide. 
  • Management, tracking and distribution of multiple copies of required paperwork, including updated design drawings. 
  • Management of the complex and paper-intensive bidding process. 
  • Registration of all communications, revisions and contract changes in a timely manner. 
  • Full audit trail with a comprehensive project history in the event of disputes or future claims. 


  • 80% efficiency improvement in the bidding process, reduced from 30 days to 5-7 days. 
  • 96% acceleration in design review cycles, from 3-4 days to 3-4 hours. 
  • 88-90% reduction in days required for communications with third parties, with turnaround time down from 25-28 days to 3 days. 
  • 50-66% reduction in days required for change management, from 21 days to 5-7 days. 
  • Savings of 8,900 kilograms (19,621 pounds) of paper and $13,350 in associated administrative costs.  
  • Annual savings of $396,000 in indirect costs, with the number of project coordinators reduced by half.  
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