[CoryB]

Looked at this same topic regarding Winnipeg in general including the ring road there (Perimeter HWY). Simply put the cost of relocation and associated remediation it would need, ie grade separating in different places, it is actually cheaper to remediate the existing situation than relocate rail.

That said Winnipeg has gone 60+ years without fully addressing rail lines on the freeway system around the city including a couple in heavy commercial trucking zones. It took 20+ years of having a "temporary" construction detour including a very high profile death to get one grade separation happening. At this point I highly doubt there will be much more progress on more.

Hopefully Regina has better luck than here.