Table III. Factor analysis of...

Table III.

Factor analysis of sustainability indicator

Items	Factor 1	Factor 2	Factor 3	Factor 4
Historic relics protection	0.753	0.115	0.170	0.230
Avoiding using unpolluted land in port area	0.752	0.065	0.155	0.253
Using environmental-friendly material in port construction	0.747	0.046	0.214	0.166
Encouraging using recyclable material	0.737	0.112	0.240	0.141
Ecological environment protection in port area	0.732	0.125	0.276	0.289
Mitigating light influence on neighboring residents	0.679	0.208	0.225	0.260
Landscape improvement	0.665	0.305	0.195	0.274
Avoiding environmental destruction when dredging	0.659	0.259	0.388	0.190
Disposing of effluents	0.596	0.286	0.327	0.317
Decreasing noise pollution	0.566	0.407	0.266	0.229
Maintaining water quality	0.557	0.209	0.332	0.211
Facilitating to economic activities	0.055	0.875	0.122	0.178
Concerning over benefits of port operators	0.208	0.850	0.054	0.173
Ensuring cargo handled safely and effectively	0.167	0.670	0.142	0.284
Establishing port development funding	0.210	0.633	0.250	0.142
Supporting tourism industry development	0.240	0.619	0.071	0.151
Offering employment opportunities	0.260	0.590	0.195	0.315
Encouraging foreign direct investment	−0.044	0.556	0.237	0.152
Strengthening port infrastructure construction	0.229	0.179	0.812	0.133
Developing approaches against rapid climate change	0.203	0.211	0.803	0.092
Flood avoidance in land side operation area	0.395	0.047	0.723	0.196
Maintaining air quality	0.385	0.204	0.670	0.116
Decreasing greenhouse gas emission	0.444	0.165	0.653	0.140
Considering environmental protection when handling cargo	0.256	0.321	0.624	0.233
Recognizing requirements of neighboring community	0.296	0.179	0.118	0.782
Employee job security and safety	0.245	0.296	0.148	0.739
Port traffic accidents prevention	0.233	0.292	0.191	0.726
Ensuring port area safety and orders	0.193	0.272	0.246	0.722
Hiring minority groups	0.365	0.135	0.084	0.642
Consulting interests groups when making port projects	0.265	0.248	0.085	0.635
Mean	3.962	4.344	4.318	4.096
SD	0.234	0.126	0.173	0.254
Eigenvalues	13.490	2.642	1.896	1.247
Percentage variance (%)	44.698	8.806	6.320	4.158
Accumulated percentage variance (%)	44.698	53.774	60.093	64.251
Cronbach’s alpha	0.939	0.871	0.905	0.894

Items	Factor 1	Factor 2	Factor 3	Factor 4
Historic relics protection	0.753	0.115	0.170	0.230
Avoiding using unpolluted land in port area	0.752	0.065	0.155	0.253
Using environmental-friendly material in port construction	0.747	0.046	0.214	0.166
Encouraging using recyclable material	0.737	0.112	0.240	0.141
Ecological environment protection in port area	0.732	0.125	0.276	0.289
Mitigating light influence on neighboring residents	0.679	0.208	0.225	0.260
Landscape improvement	0.665	0.305	0.195	0.274
Avoiding environmental destruction when dredging	0.659	0.259	0.388	0.190
Disposing of effluents	0.596	0.286	0.327	0.317
Decreasing noise pollution	0.566	0.407	0.266	0.229
Maintaining water quality	0.557	0.209	0.332	0.211
Facilitating to economic activities	0.055	0.875	0.122	0.178
Concerning over benefits of port operators	0.208	0.850	0.054	0.173
Ensuring cargo handled safely and effectively	0.167	0.670	0.142	0.284
Establishing port development funding	0.210	0.633	0.250	0.142
Supporting tourism industry development	0.240	0.619	0.071	0.151
Offering employment opportunities	0.260	0.590	0.195	0.315
Encouraging foreign direct investment	−0.044	0.556	0.237	0.152
Strengthening port infrastructure construction	0.229	0.179	0.812	0.133
Developing approaches against rapid climate change	0.203	0.211	0.803	0.092
Flood avoidance in land side operation area	0.395	0.047	0.723	0.196
Maintaining air quality	0.385	0.204	0.670	0.116
Decreasing greenhouse gas emission	0.444	0.165	0.653	0.140
Considering environmental protection when handling cargo	0.256	0.321	0.624	0.233
Recognizing requirements of neighboring community	0.296	0.179	0.118	0.782
Employee job security and safety	0.245	0.296	0.148	0.739
Port traffic accidents prevention	0.233	0.292	0.191	0.726
Ensuring port area safety and orders	0.193	0.272	0.246	0.722
Hiring minority groups	0.365	0.135	0.084	0.642
Consulting interests groups when making port projects	0.265	0.248	0.085	0.635
Mean	3.962	4.344	4.318	4.096
SD	0.234	0.126	0.173	0.254
Eigenvalues	13.490	2.642	1.896	1.247
Percentage variance (%)	44.698	8.806	6.320	4.158
Accumulated percentage variance (%)	44.698	53.774	60.093	64.251
Cronbach’s alpha	0.939	0.871	0.905	0.894

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