Quote:
Originally Posted by Beedok
I had known about the double decker trolleybuses, but was not aware that Vancouver and some other cities went for such high wires.
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The wires need to be high enough for trucks to clear them. The height limit for them varies between jurisdictions, but I gather they typically range from about 13 to 13.5 feet (3.95 to 4.1 m). Given how widespread the trolley lines are in Vancouver, if they were much lower, they would have to basically ban trucks from the city.
Of course in Europe and Asia things could be quite different, as height limits could be much lower because of other, older infrastructure (bridges, tunnels and such).
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