Posted Oct 3, 2020, 12:41 PM
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Moderator
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Join Date: Mar 2012
Location: Ottawa
Posts: 24,051
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The original intent was to run partly surface in the suburbs (at grade crossings), but after a major OC bus-VIA train accident in September 2017, the City decided to make all future O-Train extensions 100% grade separated.
There might have been cost-saving reasons as well, with LRT being able to climb steeper grades and turn sharper corners, making the tunnel cheaper.
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