Originally Posted by eternallyme
Did they ever calculate the cost of a BRT tunnel vs. LRT tunnel? Notwithstanding, it would likely need to be 4+ lanes throughout...
Before I start, I want to state that I am 100% behind the LRT project as it stands today with phase 1.
LRT tunnel is, as far as I can remember, about 600 million (give or take 100 million). Although a bus tunnel would be significantly more expensive because, as you pointed out yourself, it would need to be 4 lanes, then you have extra ventilation needed because of diesel buses as opposed to electric LRT. And finally, you still need full length platforms for future conversion (add the future cost of conversion).
Although it would be about a billion+ for a BRT tunnel, we would save billions more by not having to convert 30ish km of existing BRT, not having to rebuild every existing stations and not needing any new rail yards.
This solution would increase the system’s capacity (to maybe 14000-16000 phpd as opposed to LRT's 24000-40000 phpd), but only in the mid-term.
That being said, if phase one of LRT is deemed too expensive, or the feds/province back down of their 600 million and we have to re-evaluate what we should do; I would vote to build the BRT tunnel (on the city's dime if we have to).