PQ Media said in the ninth installment of the Global Digital Out-of-Home Media Series, that the US DOOH advertising market would grow 9% in 2016, down from 11% growth in 2015 and reaching over 30% of total out of home advertising expenditure. Consumer DOOH exposure time grew 4% to 51 minutes per week in 2015, continuing an upward trend that places DOOH among the fastest-growing segments of the broader media industry.