Table 1 Evaluation index system of HQD of the construction industry.

From: Synergies and barriers: unveiling the path to sustainable construction in the Chengdu-Chongqing urban agglomeration

Subsystems

Indicators (unit)

Type

Weight

Mean value

Standard deviation

B1 Green (6.5%)

C1 Carbon emissions (104tons)

0.0068

0.909

0.170

 

C2 per capita public park green area (\({m}^{2}\)/person)

+

0.0403

0.381

0.209

 

C3 Green coverage rate of built-up area (%)

+

0.0179

0.620

0.202

B2 Opening (13.47%)

C4 Ratio of the number of foreign-invested enterprises to the number of construction enterprises (%)

+

0.0837

0.294

0.243

 

C5 Ratio of the number of state-owned enterprises to the number of construction enterprises (%)

+

0.051

0.285

0.181

B3 Sharing (34.02%)

C6 per capita tax revenue (\({10}^{4}\)/person)

+

0.0716

0.263

0.204

 

C7 the proportion of state-owned enterprise employees to construction industry employees (%)

+

0.1035

0.182

0.178

 

C8 the number of construction industry employees (person)

+

0.1651

0.179

0.251

B4 Innovation (17.7%)

C9 Labor productivity (Yuan/person/year)

+

0.0305

0.458

0.207

 

C10 Technical equipment rate (Yuan/person)

+

0.0828

0.141

0.141

 

C11 Power equipment rate (%)

+

0.0637

0.239

0.182

B5 Coordination (28.13%)

C12 The proportion of the total output value of state-owned enterprises to the total output value of the construction industry (%)

+

0.0802

0.288

0.226

 

C13 Profit-to-tax ratio (%)

+

0.0547

0.190

0.135

 

C14 per capita construction area (\({m}^{2}\)/person)

+

0.064

0.324

0.230

 

C15 per capita completed area (\({m}^{2}\)/person)

+

0.0842

0.224

0.202

  1. Note: + represents positive indicators; - represents negative indicators.