Option 1.
For HSR to be truly viable IMO, it has to be able to do DT-DT in 1 hour or less.
That means a shinkansen type system, or maglev, both of which require completely grade separated ROW.
So yes, this would definitely need a fully grade separated, dedicated ROW within the city, terminating at a larger sunalta type elevated station behind Calgary tower.
An elevated track along nose creek into downtown would be the simplest way to go, but running it at grade between deerfoot like lrt on crowchild could provide a bonus pretext for fixing up some of those interchanges...
Not sure why extending the spec of no level crossings has to be cost prohibitive for the whole run, it's not like an overpass for every country road is required.
This is also why I like taking the HSR line east on Airport trail and north from there, makes it easier to run a greenfield route that easily bypasses the malzak/airdrie cluster.
I really do think we're closer to seeing a contiguous developed north right up to airdrie than we think, but similar grow wouldn't be expected east of the city.
This could even be designed into the eventual extension of stoney east to north of airdire.
If complete grade separation is required for a truly high speed line, it seems like the ROWs should harmonize well with freeway spec highways.
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Originally Posted by Full Mountain
Option 1 - All trains on the ROW are automated, including the HSR. This means that there cannot be any level crossings anywhere along the line (Calgary to Edmonton), causing this option to be cost prohibitive.
Keep in mind the current plan for HSR uses the existing rail ROW & track through the Nose Creek corridor and into DT adding an automated train to that would require the move to a dedicated track (both capacity & safety), including a new bridge over the Bow River (keep in mind new bridges must be clear span due to environmental regulations).
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Agreed, better to leave the existing/expanded rail lines to freight and commuter service up to malzac and airdrie, and let HSR run at speed unimpeded.
Quote:
Originally Posted by MalcolmTucker
Current plans for downtown access would likely change considerably with negotiation from CP, since I don't really think HSR is compatible with mainline freight rail, even with updated FRA standards and corridor expansion. Access into downtown Calgary will likely be one of the most expensive parts of the system.
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