Quote:
Originally Posted by Chadillaccc
Because if it were elevated for that portion, that would make the entire Northwest line grade separated. I know the trains have 100% priority at those 4 crossings (the only crossings on the NW section) but if we're going to be hitting 2 million people within the next 28 years, we're going to need grade separation. Plus, elevating the line will ensure minimal disruption to existing Ctrain services during construction for as seamless of a transfer as possible. Burying it would cause major disruptions.
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I agree with the aim, but I just don't think it's feasible, look at the work that would be required just at Sunnyside. Reconfiguring the bridges at either end alone would take months and no trains could run at that time. Maybe you could build a guideway alongside the ground level tracks but it probably would require some appropriations. And good luck selling a guideway through hipsterville Sunnyside, especially when the existing line works fine. Also remember there will still probably be an at grade crossing at 4th Ave anyway with the current plans.
Going underground would be much simpler to be honest, which usually means cheaper. If that was done at the same time as 8th Ave, then there would be no lost time with connecting the portal downtown, it would just have to connect probably at the tunnel at 16th Ave.