In the early 1980s a number of teahouses were set up, attracting crowds of tourists (and their cars) at weekends and public holidays. But because of narrow, winding mountain roads, traffic congestion became a severe problem, and business declined.
木柵貓空是全台最先推動觀光茶園的地區，1980 年初茶館林立，每逢週末假日，大批遊客車輛湧入，但產業道路狹窄，經常壅塞不堪。