Jogs in the line also create additional wear & tear, slower speeds and additional braking.
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I meant politicians (of any ilk) responding to the people to preserve their political lives.
Remember that the Province (BC Transit), when building the Expo Line between Grandview Cut and Nanaimo Station,
defied the City of Vancouver's and residents' demands to place the line in a cut-and-cover tunnel under Commercial Drive
instead of elevated in the alley. The difference in price was $14 million.
That portion of the line in the alley was never approved by the City of Vancouver (or the 1987 Area Plan could be its approval).
Excerpts from the 1987 Broadway Station Area Plan: