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 Ngau Chi Wan, Kowloon, 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. '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. 
