Tourism in Las Vegas improved last year, when 2.1% more visitors came to the city than in 2011. Hotel occupancy increased 0.6%, to 84.4%, and ADR rose 2.8%, to $108.08, the Las Vegas Convention and Visitors Authority says. The number of people driving in from Southern California is also on the rise. "Between hotels coming back online from renovations and new hotels coming into the market over the next 12 to 18 months, Las Vegas will see another 5,000 or more rooms added to the market," said Jim Cady, general manager of the DoubleTree by Hilton near the city's airport. Cady says he doesn't think occupancy will return to 2007 levels until 2015 or 2016.