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Originally Posted by Capital Shaun
I seriously don't see how running our LRT above ground downtown makes any sense at all even if we dedicate an entire road to it. Plus, in Calgary their trains are much shorter and they're running less frequently then we're even currently planning.
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Calgary currently runs 75 m trains and has rebuilt the transit mall for 100 m trains. We're going to run 98 m trains initially and ours are going to have slightly more capacity than will their 100 m trains due to the smaller number of cabs in our trains. Someday we might get trains that are bit longer, but not much longer.
Calgary runs a train as frequently as every 75 seconds downtown. We're going to run them at 2 minutes at max frequency, with longer intervals initially.
Calgary already has more total transit riders than we do and their transit ridership is growing faster than ours because their population growth is higher and they still have a lower ridership per capita so they have more room to "catch up".
In other words, we have less need of transit capacity than they do, both now and in the future, so if a surface system is going to work for them it would work for us too.
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I'd much prefer the city build a system than has room to grow over the next 50 years then build something that will be at capacity in a couple decades.
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Well if that's what we were doing I would tend to agree, but we're not doing that, are we? We're building a system with only two downtown stations that will be limited to trains no more than about 130 m long.
If we're not going to build an underground system with capacity to grow, then why bother building an underground system at all? Just put it on the surface, use the savings to make a bigger network today (and make ongoing operating savings by shortening the BRT system) and when we get around to needing more capacity, build an underground system with the larger capacity we'll need. But instead, we're going to sink a lot of money into an inherently limited system that will be difficult to expand without serious disruption and without easy alternatives (i.e. having a surface system would still leave building a tunnel as an option).