# Construction Industrialization in China: Current Profile and the Prediction
## 4 Conclusions  
Construction industrialization is bringing in a new era of building construction in China. In order to investigate the advance of construction industrialization, a national survey was conducted in 2015 encompassing 19 key provinces and municipalities in China. Based on the data collected from the provincial and municipal governments and industry, it is found that the provinces and municipalities surveyed adopted industrialized construction on numerous projects in 2014, representing a total gross floor area of 16.76 million m\({}^{2}\). Among the 19 provinces and municipalities studied, Hunan is the leading province, with a gross floor area of 3.75 million m\({}^{2}\) (22.4% of the total), while Liaoning Province, Shanghai Municipality, Anhui Province, and Shandong Province also all adopted industrialized construction methods on a large scale, each with gross floor area exceeding 1 million m\({}^{2}\). Industrialized construction is profiled with the use of a map, with different colours showing different levels of construction industrialization for 2014 in China. Furthermore, 13 surveyed provinces and municipalities respond to the survey question pertaining to prefabrication ratio (i.e., prefabricated portions as a percentage of overall area) for each project. Based on the gross floor area and the prefabrication ratios, the 13 responding provinces and municipalities are ranked in terms of net floor area of prefabricated construction, with Hunan Province again receiving the highest ranking, followed by Anhui Province, Fujian Province, Shanghai Municipality, and Zhejiang Province, sequentially. Industrialized construction is profiled with the use of a map, with different colours showing different levels of construction industrialization for 2014 in China. In this research, construction industrialization is also analyzed by structure type and building type, and it is found that: (1) buildings constructed using industrialized construction methods mainly involve reinforced concrete (accounting for 77.1% of total gross floor area) and steel structures, while wood is rarely used in industrialized construction in China; (2) affordable housing, public buildings, and residential buildings account for about 90% of total construction area, and publicly-funded buildings (i.e., affordable housing and public buildings) represent approximately half of industrialized construction; and (3) reinforced concrete is analyzed in terms of production capacity and actual production, and it is found that the production capacity tremendously exceeds the actual production in 2014. To predict the construction industrialization trends for the following five years (2016 to 2020), Holt linear forecasting model and Delphi method are utilized to predict the gross floor area of industrialized construction, based on the historical data. It is predicted that about 100 million m\({}^{2}\) of gross floor area is predicted to be built annually through industrialized construction from 2017 on, with a growing trend; by 2020, an average of more than 200 million m\({}^{2}\) of gross floor area is forecast to be built annually through industrialized construction. Construction industrialization is an innovative transition in China, which will result in substantial benefits for both the industry and the public from a long-term perspective. However, the research results indicate that, at the onset of construction industrialization, the publicly-funded buildings are leading the process and fostering the market of construction industrialization. For sustained growth of construction industrialization, such means as policy, finance, and tax incentives need to be considered to promote the construction industrialization process.