Analysis on coordinated development of prefabricated construction industry, regional economy and ecological environment——taking Beijing-Tianjin-Hebei region as an example

Taking eleven prefecture-level cities including Beijing, Tianjin and Hebei as research objects, this paper established an evaluation system for coordinated development of the prefabricated construction industry, regional economy and the environment. Additionally, the weighting TOPSIS method was adopted to assess the overall development level of three major systems in this region and the evolving relation of coupled coordination for three systems in provinces and cities of Beijing-Tianjin-Hebei region was analyzed from time and space dimensions based on the coupled coordination model. The results show that prefabricated construction industry and regional economies in Beijing-Tianjin-Hebei region have relative relevance, but there is no significant conflict between economy development and ecological environment. From time, it is found that coupled coordination degree of three major systems keeps stable and rises with fluctuation and the main restriction factors of coupling development in each province and city are different.