TravelClick's North American Hospitality Review for January predicts a steady increase in key hotel metrics in 2013 as average daily rates continue to push growth in revenue per available room. "Based on TravelClick data, ADR continues to be the main source of revPAR growth heading into 2013. While both ADR and occupancy are growing, occupancy is improving more slowly while ADR is increasing at a slightly more rapid pace," said Tim Hart, an executive vice president at TravelClick. The group projects committed-occupancy growth of 2% in 2013, while rates and revPAR are expected to rise 4.9% and 4.1%, respectively.