Table 7.
Calculation of productivity per unit of street tree management (unit: won)

Classification			Unit	Working time	Work preparation time	Travel time	Workload per hour	Daily workload
Street tree pruning	Heavy pruning	11 less	per tree	6.3	12.2	1.8	2.96	23.65
		11-21 less	per tree	12.4	12.2	1.8	2.27	18.18
		21-31 less	per tree	15.6	12.2	1.8	2.03	16.22
		31-41 less	per tree	22.4	12.2	1.8	1.65	13.19
		41-51 less	per tree	32.4	12.2	1.8	1.29	10.34
		51 or more	per tree	42.3	12.2	1.8	1.07	8.53
	Light pruning	11 less	per tree	11.3	12.2	1.8	2.37	18.97
		11-21 less	per tree	16.7	12.2	1.8	1.95	15.64
		21-31 less	per tree	21.4	12.2	1.8	1.69	13.56
		31-41 less	per tree	29.4	12.2	1.8	1.38	11.06
		41-51 less	per tree	38.9	12.2	1.8	1.13	9.07
		51 or more	per tree	57.4	12.2	1.8	0.84	6.72
Shrub pruning		Less 0.9m	m2	3.4	2.4	0.03	102.92	823.33
		0.9m or more	m2	5.8	2.4	0.03	72.9	583.23
Watering of water sprinkler truck		1,800L	m2	3.7	1.4	1.2	142.86	1,142.86
		3,800L	m2	2.5	1.4	1.2	176.47	1,411.76
		5,500-6,500L	m2	1.7	1.4	1.2	209.3	1,674.42
Weeding			m2	6.1	5.6	0.03	51.15	409.21
Tree fertilization		11 less	per tree	5.1	1.3	0.03	9.33	74.65
		11-21 less	per tree	5.8	1.3	0.03	8.42	67.32
		21-31 less	per tree	6.7	1.3	0.03	7.29	58.32
		31-41 less	per tree	8.2	1.3	0.03	6.17	49.33
		41-51 less	per tree	9.3	1.3	0.03	5.44	43.52
		51 or more	per tree	11.6	1.3	0.03	4.5	36.01
Shrub fertilization			m2	9.4	2.1	0.03	52.04	416.31
Chemical spraying (machine)			L	73.5	42.3	73.5	1.06	8.45
Windbreak wall installation		H = 0.45m	m	4.6	3.3	0.03	7.57	60.53
		H = 0.9m	m	6.4	4.2	0.03	5.64	45.16