"Yangmingshan was the first place in Taipei where the government started pulling down illegally erected business signs," says Kuo Chiung-ying, who used to work for the Construction and Planning Administration (CPA). Before the national parks were established in 1985, the CPA began to enforce zoning and building regulations, even requiring the electric lines along the Yangmingshan-Chinshan Highway to be buried underground.
「陽明山可說是台北市最早開始拆除招牌的地方」，當時仍在營建署服務的郭瓊瑩說，早在國家公園於民國七十四年成立之前，營建署即開始取締違章建築，甚至連陽金公路的電線桿也早已地下化。