Spatial Efficiency Evaluation for Outdoor Environment in High-Rise Residential Area: An Data Envelopment Analysis Approach
Table 3
Data envelope analysis results of outdoor environmental spatial efficiency of 10 high-rise residential areas in a certain area.
DMU
CRS
VRS
SE
RTS
Result
Bojing Architecture
0.787
0.869
0.905
IRS
DEA is invalid
North American Impression Garden
0.88
0.882
0.998
IRS
DEA is invalid
Zhongxiang Shengjing Garden
0.722
0.782
0.923
IRS
DEA is invalid
Royal Lagoon
0.669
0.716
0.934
IRS
DEA is invalid
Berlin Spring
1
1
1
—
DEA is efficient
WanZhen Free Garden
0.804
0.912
0.882
DRS
DEA is invalid
Camphor Villas
1
1
1
—
DEA is efficient
Xinhua University Spring
0.903
0.977
0.923
IRS
DEA is invalid
Green and garden
0.993
1
0.993
IRS
DEA is invalid
Jingrong City light
1
1
1
—
DEA is efficient
The average
0.876
0914
0.956
—
—
Note: CRS is the comprehensive efficiency; VRS is technical efficiency; SE=CRS/VRS is the scale efficiency; RTS is revenue of scale; IRS for increasing returns to scale; DRS is diminishing returns to scale; - represents the constant return to scale.
