1. Problems that may be found in the first-phase housing development provide reference for the second-phase housing development.
2. Most of the houses in the first phase are close to the street, which is easily polluted by automobile exhaust and noise.
3. The location of the second phase house is close to the inside. After the residents of the second phase house move in, the surrounding environment of the community has been relatively perfect, life is convenient, the environment is relatively quiet, and they can enjoy the green environment of the community at the same time.