Quote:
Originally Posted by aberdeen5698
I often wonder why subway projects don't optimize the tunnels for efficiency by boring deeper between stations. If the train leaves the station on a downhill gradient it gets a gravity assist, and if it approaches the next station on an uphill gradient then it reduces wear and tear on the brakes.
Seems like the Yaletown to Olympic Village dip under False Creek would be an ideal use of that principle if they have speed restrictions.
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Don't they mostly use regenerative braking?
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