One of the things San Francisco is known for is its hills; long and steep hills that seem to mock anyone who tries to climb them, hills that were the reason why the cable car was invented. But it doesn't have a monopoly on them, and point in fact, White Rock, British Columbia could easily fill in for San Francisco in that respect.
Oxford Street is easily the match of any hill I encountered in San Francisco - if only I hadn't been dumb enough to actually climb it, while pushing a bicycle at the end of a 30+ kilometer ride through Surrey. This street is so steep that the sidewalks have stepping stones built into them - and by the way, the hill is a kilometer long. I would be surprised if it's not one of the single steepest streets in the Lower Mainland. It would be a great hill for a cable car.
To illustrate how steep Oxford Street is, here's a tilted picture, arranged so that the street appears level.
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