Dueling visions for how O’Hare Airport runways should be used at night were unveiled Monday, with city officials relying primarily on parallel runways and a citizens group preferring heavier use of diagonal ones. With O’Hare jet noise complaints closing in on 3 million so far this year, two different sets of flight path plans emerged during a sometimes tense meeting of an Ad Hoc O’Hare Fly Quiet Committee. A consultant for the Chicago Department of Aviation offered some homeowners west of O’Hare — now bombarded with 70 percent of airport departures — an extra layer of relief with one idea. He suggested sending more departing night...
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