A Study of Influence Distance and Road Safety Avoidance Distance from Postearthquake Building Debris Accumulation

Table 6

Assumed distribution parameters and value in hypothetical testing.

Number	Assumed distribution	Parameter estimation
		The direction along the Z axis		K-S test	Chi-square test	The direction along the X axis		K-S test	Chi-square test
1	Normal distribution			0.411	0.095			0.300	0.057
2	Lognormal distribution			0.329	0.080			0.004	0.000
3	Extreme value type I			0.311	0.019			0.012	0.000
4	Gamma distribution			0.609	0.086			0.084	0.006
5	Extreme value type III			0.541	0.130			0.330	0.028
6	Rayleigh distribution	—		0.179	0.093	—		0.024	0.002