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Originally Posted by Migrant_Coconut
Never said North Delta was good at development: I said they were better than the rest of Delta. They've got their own NIMBYs, just less than Ladner. But seeing as practically all that ~30k growth is probably going to be there as well, and they're getting the R6 (which is being speculated on upgrading to RRT), it's fair to say rapid transit for the lower DNV is an actual need and not a political one.
Yours is '06-16, not '11-21... given the timestamps, I guess Ladner's already slowing down?
I think you're mistaking NPV for BCR; the 2012 report has the former, the 2018 one has the latter.
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Scott Road isn't on the current list of future RRT projects to 2050.
So clearly NS is being pushed up the list for political reasons.
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https://en.wikipedia.org/wiki/Benefit%E2%80%93cost_ratio
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In practice, the ratio of present value (PV) of future net benefits to expenditure is expressed as a BCR. (NPV-to-investment is net BCR.)
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https://en.wikipedia.org/wiki/Net_present_value
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NPV is determined by calculating the costs (negative cash flows) and benefits (positive cash flows) for each period of an investment. After the cash flow for each period is calculated, the present value (PV) of each one is achieved by discounting its future value (see Formula) at a periodic rate of return (the rate of return dictated by the market). NPV is the sum of all the discounted future cash flows.
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If the BCR was <1, the NPV should be <0.
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