I would not want to be on the main highway (or at least what I call main) so that removes Golden, Revelstoke, Fernie. Which is too bad because the idea of being in Golden and its proximity to Banff is attractive.
Actually I don't think Trans-Canada is much of a problem in Golden, as town is way off & you can't hear anything. Golden does get too hot in summer & considerably lacks amenities. But point is well taken because Canmore (in AB) has Trans-Canada right across middle of valley + very noisy CP Rail line & it is a problem.
Speaking of Hwy1 and Golden, heard the other day they plan 24 hr closure for 6-8 weeks this spring. It's because of works on that ~4km bottleneck west of town that is really narrow & even dangerous. So one will have to use alternate route via Radium & then Hwy93 to Castle Junction, which adds ~1hr