Quote:
Originally Posted by Nouvellecosse
I think Toronto and Vancouver deserve a lot of credit for retaining legacy green infrastructure like the streetcars and trolley buses! I don't think it's so much that they're overlooked but rather that the new BEV investments make the news since they're new and the news mainly covers new things. Things that represent significant changes.
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While I too think it is great that Vancouver and Toronto retain much of it's green infrastructure, I don't think it had anything to do with being green. The retention of these systems was strictly due to pragmatism.
In Vancouver's case, the hills were the issue. The sharp inclines in the West End and Little Mountain made trolleys far superior as diesel buses would have had a bitch of a time climbing them and being very slow to boot. This is why all the North/South routes are trolley while the the much less hilly East/West routes aren't with the only exception being Broadway.
In Toronto's case, the streetcar system was very extensive and tearing up tracks is very expensive and disruptive and streetcars offered the high capacity needed on these already very busy downtown routes.
As battery/hydrogen buses & streetcars become less expensive, more capable, have faster recharging times, more efficient, and have far more suppliers and infrastructure, I think you will see the phase-out of all overhead supply systems for local transit. It will not happen all at once but will be gradually done as the fleets need renewing. Overhead wires are expensive to maintain, are unsightly, and in the case of trolleys often become disconnected from the buses especially when turning corners.
In short the reason for catenary overhead supply lines is losing it "raison d'etre" and transit agencies will increasing view them as an expensive technology but without the flexibility of battery/hydrogen ones. This I think will happen faster in terms of Vancouver's trolleys because they are increasingly finding it more difficult to get suppliers which adds to their relative cost.