Comparative Analysis of the Reported Animal-Vehicle Collisions Data and Carcass Removal Data for Hotspot Identification

Table 3

Summary statistics of characteristics for reported AVCs and carcasses in the Washington data.

Variable code	Variable	Minimum	Maximum	Mean	SD^†
	Number of reported AVCs per segment	0	22	0.24	0.81
	Number of carcasses per segment	0	95	0.94	3.88
z1	Annual average daily traffic (in thousands)	0.31	148.8	13.85	19.76
z2	Restrictive access control (Yes: 1; No: 0)	-	-	0.24	-
z3	Posted speed limit (mph)	20	70	52.76	10.79
z4	Truck percentage (%)	0	52.28	14.05	8.29
z5	Total number of lanes for both directions	1	9	2.79	1.24
z6	Roadway length (mile)	0.01	6.99	0.22	0.4
z7	Terrain type (rolling: 1; otherwise: 0)	-	-	0.720	-
z8	Terrain type (mountainous: 1; otherwise: 0)	-	-	0.096	-
z9	Lane width (feet)	10	20	12.5	1.88
z10	Left shoulder width (feet)	0	18	2.44	2.04
z11	Right shoulder width (feet)	0	20	4.03	3.52
z12	White-tailed deer habitat (yes: 1; no: 0)	-	-	0.31	-
z13	Mule deer habitat (yes: 1; no: 0)	-	-	0.51	-
z14	Elk habitat (yes: 1; no: 0)	-	-	0.31	-
z15	Median width (feet)	0	60	7.9	15.62
z16	Rural or Urban (urban: 0; rural: 1)	-	-	0.758	-

Note.^†SD = Standard Deviation.
AVC data record.
removal data record.
variable.
out of 10,475 segments have only one lane.
- = not applicable.