Table 6 Average of streetscape greenness indices by street types (unit: %)

Street type	Street greenness index (A)	Street-trees greenness index (B)	Non street-trees greenness index (A)−(B)
National road	15.93	4.47	11.46
Local road	26.14	9.10	17.04
Gun-road	28.28	8.55	19.73
Myun-road	24.72	4.51	20.21
Li-road	40.70	6.92	33.78
Nong-road	32.78	2.56	30.22
Urban road	18.36	9.36	9.00
Average	26.70	6.50	20.21