## 4 Case Study
### Evaluation Criteria  
In order to conduct a scientific and rational evaluation of the construction industrialization development level, it is imperative to establish the evaluation criteria [45]. Standard evaluation criteria are chosen on a scientific basis, which must be reasonable and easy to operate [46]. In this paper, the evaluation criteria of the RCI development level were set according to four categories: (i) quantitative index with comparison to the national average in 2015, such as A21, A22, A23, A24, A51 and A54; (ii) quantitative index with comparison to the proportion of the national total in 2015, such as A25, A33, A41, A42 and A43; (iii) quantitative index regarding some specific data for application proportions, which will be evaluated by experts in a qualitative manner due to this data being difficult to acquire, such as A11, A12, A13, A14, A15, A16, A17 and A32; and (iv) quantitative index evaluated by experts in qualitative manner, such as A31, A52 and A53. The development level of RCI is divided into five evaluation grades on a five-point scale: 5--excellent; 4--good; 3--medium; 2--fair; and 1--poor. According to the above categories for criteria, the evaluation criteria of the RCI development level for each indicator are shown in Tables 6-10. Figure 3: The final index system for construction industrialization development level. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Index** & **Evaluation Criteria** & **Score** & **Rule Explained** \\ \hline  & Proportion more than 20\% & 5 & \\ A11, A12 & Proportion within 15–20\% & 4 & \\ A13, A15 & Proportion within 10–15\% & 3 & National programmer for construction \\ A16, A17 & Proportion within 5–10\% & 2 & industry modernization [47] \\  & Proportion lower than 5\% & 1 & \\ \hline  & Proportion more than 60\% & 5 & \\  & Proportion within 40–60\% & 4 & \\ A14 & Proportion within 20–40\% & 3 & Compared with data of “Green building \\  & Proportion within 10–20\% & 2 & action plan of Jiangsu province” [48] \\  & Proportion lower than 10\% & 1 & \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Evaluation criteria of index system in the technical dimension (A1). \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Index** & **Scoring Criteria** & **Score** & **Rule Explained** \\ \hline  & more than 340,000 Yuan per person & 5 & \\  & within 330,000–340,000 Yuan/person & 4 & \\ A21 & within 320,000–330,000 Yuan/person & 3 & The national average is 324,026 [44] \\  & within 290,000–320,000 Yuan/person & 2 & \\  & lower than 290,000 Yuan per person & 1 & \\ \hline  & more than 70,000 Yuan per person & 5 & \\  & within 60,000–70,000 Yuan/person & 4 & \\ A22 & within 50,000–600,000 Yuan/person & 3 & The national average is 52,000 Yuan/person [44] \\  & within 40,000–50,000 Yuan/person & 2 & \\  & lower than 40,000 Yuan/person & 1 & \\ \hline  & Price index below 90 & 5 & \\  & Price index within 90–95 & 4 & \\ A23 & Price index within 95–100 & 3 & The national average is 100.0 [44] \\  & Price index within 100–105 & 2 & \\  & Price index more than 105 & 1 & \\ \hline  & Proportion more than 7.5\% & 5 & \\  & Proportion within 7.0–7.5\% & 4 & \\ A24 & Proportion within 6.5–7.0\% & 3 & The national average is 6.86\% [44] \\  & Proportion within 6.0–6.5\% & 2 & \\  & Proportion lower than 6.0\% & 1 & \\ \hline  & Proportion more than 15\% & 5 & \\  & Proportion within 7–15\% & 4 & \\ A25 & Proportion within 4–7\% & 3 & The national total is 37,972 trillion Yuan [44] \\  & Proportion within 2–4\% & 2 & \\  & Proportion below 2\% & 1 & \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Evaluation criteria of index system in the economic dimension (A2).