Why Ottawa’s LRT Crisis Is a Public-Private Partnership Problem
Ottawa’s Confederation Line is often discussed as a story of bad trains, harsh winters, or unfortunate teething problems. That framing is convenient. It is also wrong.
What Line One actually represents is a textbook failure of the public-private partnership model when applied to complex, safety-critical urban transit. The current crisis, in which roughly 70 percent of Line One’s rail cars have been removed from service due to wheel bearing failures, does not reflect a single engineering defect. It reflects a governance structure designed to diffuse responsibility precisely when responsibility matters most.
P3s and the Illusion of Risk Transfer
Public-private partnerships are sold on a simple promise. Risk is transferred to the private sector. Expertise is imported. Costs are controlled. The public gets infrastructure without bearing the full burden of delivery.
In reality, Line One demonstrates the opposite. Risk was not transferred. It was obscured.
The City of Ottawa owns the system. A private consortium designed and built it. Operations and maintenance are contracted. Vehicles were selected through procurement frameworks optimized for bid compliance rather than long-term resilience. Oversight is fragmented across contractual boundaries. When failures emerge, every actor can point to a clause, a scope limit, or a shared responsibility.
The result is not efficiency. It is paralysis.

The Bearing Crisis as a Structural Warning
Wheel bearing assemblies are not peripheral components. They are foundational safety elements, designed to endure hundreds of thousands of kilometres under predictable load envelopes. That Ottawa was forced to pull all cars exceeding approximately 100,000 kilometres of service is not routine maintenance. It is an admission that the system’s assumptions about wear, inspection, and lifecycle management were flawed.
Under a traditional public delivery model, this would trigger a clear chain of accountability. The owner would interrogate the design, mandate modifications, and absorb the political cost of service reductions during remediation.
Under the P3 model, the response is slower and narrower. Each intervention must be negotiated within contractual constraints. Remedies are evaluated not only on technical merit, but on liability exposure. Decisions that should be engineering-led become legalistic.
This is not a bug in the P3 model. It is the model working as designed.
Why Transit Is a Bad Fit for P3s
Urban rail systems are not highways or buildings. They are complex, adaptive systems operating in real time, under variable conditions, with zero tolerance for cascading failure. They require continuous learning, rapid feedback loops, and the ability to redesign assumptions as reality intrudes.
P3 structures actively inhibit these qualities.
They separate design from operations. They treat maintenance as a cost center rather than a safety function. They rely on performance metrics that reward availability on paper rather than robustness in practice. Most importantly, they fracture institutional memory. Lessons learned are not retained by the public owner. They are buried in proprietary reports and contractual disputes.
Line One’s repeated failures, from derailments to overhead wire damage to bearing degradation, are not independent events. They are symptoms of a system that cannot self-correct because no single entity is empowered to do so.
The Expansion Paradox
Ottawa is now extending Line One east and west while the core remains unstable. This is often framed as momentum. In policy terms, it is escalation.
Every kilometre of new track increases operational complexity and maintenance load. Every new station deepens public dependence on a system whose reliability has not been structurally resolved. Under a P3 framework, expansion also multiplies contractual interfaces, compounding the very governance problems that caused the original failures.
This is how cities become locked into underperforming infrastructure. Not through malice or incompetence, but through institutional inertia reinforced by sunk costs.
A Policy Alternative
Rejecting P3s is not a call to nostalgia. It is a recognition that certain assets must be governed, not merely managed.
Urban rail requires:
• Unified ownership of design, operations, and maintenance.
• Independent technical authority answerable to the public, not contractors.
• Lifecycle funding models that prioritize durability over lowest-bid compliance.
• The ability to redesign systems midstream without renegotiating blame.
None of these are compatible with the current P3 framework.
Cities that have learned this lesson have moved back toward public delivery models with strong in-house engineering capacity and transparent accountability. Ottawa should do the same, not after the next failure, but now.
The Real Cost of P3 Optimism
The cost of Line One is no longer measured only in dollars. It is measured in lost confidence, constrained mobility, and the quiet normalization of failure in essential infrastructure.
Public-private partnerships promise that no one pays the full price. Ottawa’s experience shows the opposite. When everyone shares the risk, the public absorbs the consequences.
Line One does not need better messaging or tighter performance bonuses. It needs a governance reset. Until that happens, every bearing replaced is merely another patch on a system designed to forget its own mistakes.
Sources
CityNews Ottawa. “OC Transpo forced to remove trains from Line 1 due to wheel bearing issue.” January 2026.
https://ottawa.citynews.ca
Yahoo News Canada. “70% of Ottawa’s Line 1 trains out of service amid bearing problems.” January 2026.
https://ca.news.yahoo.com
Transportation Safety Board of Canada. “Rail transportation safety investigation reports related to Ottawa LRT derailments.” 2022–2024.
https://www.tsb.gc.ca
OC Transpo. “O-Train Line 1 service updates and maintenance notices.”
https://www.octranspo.com









