Table 2 Demographic characteristics of experts

Category		First		Second
		N	%	N	%
Gender	Male	37	77.1	39	75.0
	Female	11	22.9	13	25.0
Age	30~39	21	43.8	28	53.8
	40~49	18	37.5	14	26.9
	50~59	6	12.5	6	11.5
	≥60	3	6.2	2	3.9
	Missing data	-	-	2	3.9
	Mean	42.7		41.5
Major	Landscape architecture	35	72.9	31	59.6
	Urban	9	18.7	14	26.9
	Architecture	2	4.2	5	9.6
	Other	2	4.2	2	3.9
Education attainment	College graduate	12	25.0	12	23.1
	Master	19	39.6	14	26.9
	Ph.D	17	35.4	26	50.0
Occupation	Educational institution	12	25.0	13	25.0
	Research institution	9	18.8	17	32.7
	Public institution and urban regeneration center	9	18.8	7	13.5
	Urban regeneration company	17	35.4	15	28.8
	Other	1	2.0	-	-
Work experience	5~9	14	29.2	18	34.6
	10~14	15	31.2	11	21.2
	15~19	7	14.6	12	23.0
	≥20s	10	20.8	11	21.2
	Missing data	2	4.2	-	-
	Mean	14.4		13.9