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Alex B: highways are low capacity arteries...

I am not disputing your capacity numbers. But you did not look at the COST side of the issue.

Subway cost effectiveness are far easier to claim than to actually demonstrate. The wisdom has it that they are only cost-effectiveness in high density cities. That is why they don't build them in the hinterlands, and conversely, why they don't build many roads in dense cities. I395 is in between these scenarios, and cost-effectiveness of the metro of the HOV lanes is a open and interesting question.

by goldfish on Jun 13, 2012 3:28 pm • link • report

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