It was first opened to the public in the 1920s as a part of Clear Water Bay Road, yet it was split from the road and named after the Choi Hung Estate (a public housing estate in Hong Kong) in 1963; and nowadays, the road has four lanes for traffic in both ways.
It was first opened to the public in the 1920s as a part of Clear Water Bay Road, yet it was split from the road and named after the Choi Hung Estate in 1963. Choi Hung Estate (Chinese: ; lit. 'rainbow estate') is a public housing estate in Ngau Chi Wan, Kowloon, Hong Kong. Nowadays the road has four lanes for traffic in both ways. 
