단동, 연변, 훈춘 등 북·중 접경지대 현지조사를 통해 장기간 신의주, 무산, 회령 등 실제 주택·건설에서의 외형적 변화·추이를 살펴보았다.
Through on-site surveys on the North Korean-Chinese border areas such as Dandong, Yanbian, and Hunchun, the external changes and trends in real housing and construction such as Sinuiju, Musan, and Hoeryeong were examined for a long time.