The Wine Country tourism boom has its downside, exemplified by traffic congestion on State Route 29, particularly on summer weekends, when the number of tourists often exceeds the carrying capacity of the road. The Napa Valley is also experiencing pressures for increased urbanization and roadway upgrading. There have also been issues related to regulating home sharing. After a boom in residents renting rooms in private homes, the city government of Napa was forced to require any Napa Airbnb properties to register.