In reply to:

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Of course, that doesn't really help in practice, as the precision of one-way streets is a requirement. It'd be nice if we could figure out some way to conflate Tiger and something less precise that had one-way info.

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IIRC tiger actually will tell us which streets are one way, but it won't tell us in which direction. I am thinking this simplifies conflation because (at least as a first step) we don't need to match everything, only known oneways.

-Mike