DALLAS (AP) — A makeshift bike lane divider made of painted two-by-fours and PVC pipes lasted three days on a busy Dallas street last month before the city removed it, which was two days longer than its creators expected.The $100 structure was the work of the Dallas Transformation Department, one of several like-minded groups of anonymous Twitter users who have taken a do-it-yourself approach to making road improvements in cities stretching from New York and Boston to San [...]