Table 3.

Descriptive statistics of the length of protruding parts in 3 scenarios.

	Protruding roots						Protruding flares						Protruding roots and/or flares
	Mean	Median	SD	Brick	Concrete	Total	Mean	Median	SD	Brick	Concrete	Total	Mean	Median	SD	Brick	Concrete	Total
A. moluccanus	0.521	0.489	0.153	5	15	20	0.736	0.723	0.289	6	8	14	0.626	0.555	0.249	10	19	29
A. alexandrae	0.144	0.144	N/A	1	0	1	0.178	0.178	0.018	2	0	2	0.167	0.165	0.024	3	0	3
B. ceiba	0.630	0.574	0.236	28	0	28	0.589	0.626	0.208	21	1	22	0.628	0.584	0.237	38	1	39
C. equisetifolia	0.586	0.578	0.148	8	0	8	0.530	0.490	0.199	16	0	16	0.564	0.536	0.192	19	0	19
C. burmannii	0.616	0.623	0.232	28	3	31	0.537	0.548	0.147	20	3	23	0.627	0.628	0.196	38	5	43
D. regia	0.867	0.708	0.495	24	3	27	0.794	0.613	0.471	29	8	37	0.870	0.689	0.500	37	8	45
F. altissima	1.334	1.227	0.522	47	1	48	1.290	1.207	0.425	50	1	51	1.419	1.306	0.472	56	1	57
F. microcarpa	1.137	0.989	1.102	42	26	68	1.060	1.042	0.387	41	19	60	1.225	1.099	0.999	48	29	77
L. speciosa	0.614	0.495	0.342	0	5	5	0.369	0.292	0.252	3	4	7	0.468	0.414	0.337	3	7	10
M. cajuputi	0.667	0.590	0.325	12	6	18	0.607	0.572	0.297	6	5	11	0.666	0.603	0.304	14	10	24
M. × alba	N/A	N/A	N/A	0	0	0	N/A	N/A	N/A	0	0	0	N/A	N/A	N/A	0	0	0
P. serratifolia	0.658	0.658	0.042	1	1	2	0.350	0.350	N/A	1	0	1	0.555	0.628	0.180	2	1	3
S. campanulata	0.484	0.406	0.173	5	4	9	0.519	0.469	0.317	5	9	14	0.527	0.456	0.297	7	10	17
X. chrysanthus	0.631	0.631	N/A	1	0	1	N/A	N/A	N/A	0	0	0	0.631	0.631	N/A	1	0	1
Total	0.896	0.725	0.739	202	64	266	0.854	0.748	0.454	200	58	258	0.899	0.737	0.680	276	91	367

The 3 scenarios were namely protruding roots, protruding flares, and protruding roots and/or flares. The statistics were computed using only trees with protruding parts. For each scenario, if more than 1 protruding part was present on a tree, the length of the longest protrusion was considered. The count of pavement materials around the tree pits with protrusion was provided. Due to the lack of protrusion or small sample size, incomputable statistics were denoted by “N/A” for A. alexandrae, M. × alba, P. serratifolia, and X. chrysanthus.