27/05/2026
Over the past few years, we have had the opportunity to collaborate on several strategic transportation projects within the Metrolinx program, supporting international consortiums under different contracting models — from traditional Design & Build schemes to Progressive Design Open Book (PDOB) models, such as the PTUS Project and EGS Project projects.
Now, the future Yonge North Subway Extension SRS — still in the pre-award stage — is bringing an even more collaborative approach into focus: the “Alliance” model.
This approach represents a major shift in the way large infrastructure projects are delivered:
✔️ early integration between owner, designer, contractor, and specialists
✔️ shared management of risks and opportunities
✔️ technical and commercial transparency
✔️ collaborative decision-making
✔️ focus on overall project optimization rather than isolated responsibilities
In this context, Value Engineering becomes even more strategic.
At Deltana Engineering, we believe that teams capable of bringing a cross-disciplinary vision and a strong constructability-oriented mindset from early stages will play a key role in the success of these contracts.
Our experience supporting complex infrastructure projects allows us to contribute in areas such as:
🔹 technical design review and auditing
🔹 constructability and solution optimization
🔹 multidisciplinary BIM coordination
🔹 quantity control and optimization
🔹 construction technical support and Back Office Construction Engineering (BOCE)
🔹 reinforcement optimization and deviation tracking
🔹 early detection of clashes, inconsistencies, and undefined scopes
Alliance models require far more than technical production: they demand partners capable of generating trust, integration, and efficiency in highly complex environments.
This is where the ability to anticipate problems, optimize solutions, and connect design with constructability becomes a key factor for project success.