Spatial Efficiency Evaluation for Outdoor Environment in High-Rise Residential Area: An Data Envelopment Analysis Approach

Table 1

Evaluation index system.

DMU		Input indicators			Output indicators
		Room rate ($/m^2)	Plot ratio	Green rate (%)	Frequency of use (person-time)	Satisfaction
Luyang district	Bojing architecture	5300	2.5	41	40	3.1
	North American impression garden	4600	4.55	43	38	3.33
Yaohai district	Zhongxiang Shengjing Garden	4500	3.07	41	41	2.67
	Royal Lagoon	6400	4.3	48	45	3.3
Baohe district	Berlin Spring	4500	2.68	36	65	3.7
	Wanzhen Free Garden	6800	2.87	49.2	67	3.57
Shushan district	Camphor villas	6200	1.85	42	67	3.9
	Xinhua University spring	5600	2.02	50	42	3.4
New station district	Green and garden	3100	2.38	31.2	37	2.53
	Jingrong city light	4500	2.44	42	58	3.6