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Polyline roads to Polygon

Question asked by CyanBC on Jan 6, 2015

Greetings, I have a nice complete road dataset for Okinawa I managed to wrangle out of a Japanese website. However the roads are all polylines that are mapped to the road edges. Thus 1 road will have a left side and a right side polyline - (not labled as such). I want to create a polygon that fills in the space between these lines. The feature to Polygon tool makes a polygon out of all possible connections (including areas without any roads, not just the roads themselves). Is there a better way to create a polygon from these lines?