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So how much will it cost to upgrade 4.7 million miles of roadway in the US? How long will it take? What does the technology look like? What impact will it have

So how much will it cost to upgrade 4.7 million miles of roadway in the US? How long will it take? What does the technology look like? What impact will it have on the economy to close huge swaths of road?

atroyn 9y ago
These are all questions to be addressed, along with 'how many of those miles should we upgrade', 'what will we get out of it', and 'how do we make a self-driving car'.