This report is an archived publication and may contain dated technical, contact, and link information

Publication Number: FHWA-RD-03-037
Date: May 2005

Validation of Accident Models for Intersections

FHWA Contact: John Doremi,
HRDI-10, (202) 493-3052, John.doremi@dot.gov

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APPENDIX C: DESCRIPTIVE STATISTICS FOR FULL DATASETS BY STATE TYPE I

Table 239. Summary Statistics for Type I Sites by State

Variables		Number of Sites	Mean	Median	Minimum	Maximum
TOTACC per year	Minnesota	270	0.5368	0.3571	0	3.86
	Georgia	116	1.2716	1.0000	0	6.00
	California	1432	0.5669	0.3750	0	6.75
INJACC per year	Minnesota	270	0.2085	0.1429	0	1.57
	Georgia	116	0.4741	0.5000	0	2.50
	California	1432	0.2600	0.1250	0	4.13
AADT1	Minnesota	270	3981	2611	401	22067
	Georgia	116	3593	2950	420	16900
	California	1432	6590	5097	450	35750
AADT2	Minnesota	270	536	339	101	4608
	Georgia	116	639	430	300	6480
	California	1432	472	210	100	10001
RT MAJ	Minnesota	270	139 (51.5%)
	Georgia	116	3 (2.6%)
	California	1432	121 (8.4%)
RT MIN	Minnesota	270	4 (1.5%)
	Georgia	116	4 (3.4%)
	California	1432	40 (2.8%)
LT MAJ	Minnesota	270	45 (16.7%)
	Georgia	116	3 (2.6%)
	California	1432	388 (27.1%)
LT MIN	Minnesota	270	0 (0%)
	Georgia	116	1 (0.9%)
	California	1432	13 (0.9%)
MEDIAN	Minnesota	270	0 (0%)
	Georgia	116	3 (2.6%)
	California	1432	77 (5.4%)
TERRAIN	Minnesota	270	unknown
	Georgia	116	flat 48 (41.4%) rolling 58 (50%) mountainous 10 (8.6%)
	California	1432	flat 520 (36.3%) rolling 489 (34.1%) mountainous 423 (29.5%)
SPD1	Minnesota	270	52.54	55.00	25	55
	Georgia	116	46.89	45.00	25	55
	California	1432	unknown
DRWY1	Minnesota	270	1.29	1.00	0	8
	Georgia	116	1.57	1.00	0	7
	California	1432	unknown
HAZRAT1	Minnesota	270	2.13	2.00	1.00	4.00
	Georgia	116	3.56	3.50	1.50	7.00
	California	1432	unknown
HAU	Minnesota	270	-0.80	0.00	-90	85
	Georgia	116	-2.97	0.00	-65	60
	California	1432	unknown
SHOULDER1	Minnesota	270	unknown
	Georgia	116	1.02	0.35	0.00	7.00
	California	1432	5.05	4.50	0.00	16.00
VCI1	Minnesota	270	0.1088	0.0000	0.0000	1.0200
	Georgia	116	1.3337	0.8855	0.0000	14.0000
	California	1432	unknown
HI1	Minnesota	270	1.2689	0.0000	0.0000	29.0000
	Georgia	116	2.5545	0.6435	0.0000	23.2900
	California	1432	unknown

TYPE II

Table 240. Summary Statistics for Type II Sites by State

Variable and Abbreviation		Number of Sites	Mean	Median	Minimum	Maximum
TOTACC per year	Minnesota	250	0.5406	0.3571	0	7.07
	Georgia	108	1.1806	0.5000	0	6.00
	California	748	1.0132	0.6250	0	7.13
INJACC per year	Minnesota	250	0.2509	0.1429	0	3.14
	Georgia	108	0.6574	0.5000	0	3.50
	California	748	0.5110	0.3750	0	4.75
AADT1	Minnesota	250	2605	1983	419	14141
	Georgia	108	3181	2100	420	12300
	California	748	6784	5620	407	38126
AADT2	Minnesota	250	395	258	100	3209
	Georgia	108	644	430	100	7460
	California	748	562	310	100	6700
RT MAJ	Minnesota	250	130 (52%)
	Georgia	108	3 (2.8%)
	California	748	62 (8.3%)
RT MIN	Minnesota	250	1 (0.4%)
	Georgia	108	2 (1.9%)
	California	748	23 (3.1%)
LT MAJ	Minnesota	250	0 (0%)
	Georgia	108	6 (5.6%)
	California	748	217 (29%)
LT MIN	Minnesota	250	0 (0%)
	Georgia	108	0 (0%)
	California	748	1 (0.1%)
MEDIAN	Minnesota	250	0 (0%)
	Georgia	108	1 (0.9%)
	California	748	36 (4.8%)
TERRAIN	Minnesota	250	unknown
	Georgia	108	flat 52 (48.1%) rolling 52 (48.1%) mountainous (3.7%)
	California	748	flat 468 (62.6%) rolling 186 (24.9%) mountainous (12.6%)
SPD1	Minnesota	250	53.75	55.00	30	55
	Georgia	108	49.17	55.00	30	55
	California	748	unknown
DRWY1	Minnesota	250	0.66	0.00	0	6
	Georgia	108	1.21	1.00	0	6
	California	748	unknown
HAZRAT1	Minnesota	250	2.04	2.00	1	6
	Georgia	108	3.41	3.00	1	6
	California	748	unknown
HAU	Minnesota	250	0.75	0.00	-120	150
	Georgia	108	-0.52	-0.25	-58	50
	California	748	unknown
SHOULDER1	Minnesota	250	unknown
	Georgia	108	0.73	0.50	0.00	2.30
	California	748	6.10	6.00	0.00	16.00
VCI1	Minnesota	250	0.1350	0.0300	0.0000	2.1000
	Georgia	108	1.1089	0.9045	0.0000	7.5000
	California	748	unknown
HI1	Minnesota	250	0.55	0.00	0.00	9.00
	Georgia	108	1.69	0.58	0.00	14.60
	California	748	unknown

TYPE III

Table 241. Summary Statistics for Type III Sites by State:California (CA), Michigan (MI), and Georgia (GA)

Variables		State	No. of Sites	Mean	Median			Minimum	Maximum
TOTACC per Year		CA	60	1.2	0.7			0.0	4.5
		MI	24	2.1	1.2			0.2	10.6
		GA	52	1.2	0.8			0.0	6.0
		Total	136	1.4	0.8			0.0	10.6
INJACC per Year		CA	60	0.6	0.3			0.0	3.7
		MI	24	0.5	0.4			0.0	2.0
		GA	52	0.5	0.5			0.0	4.0
		Total	136	0.6	0.3			0.0	4.0
AADT1		CA	60	13484	12082			2360	33333
		MI	24	11635	11958			6817	23716
		GA	52	13100	12200			6500	28601
		Total	136	13011	12100			2360	33333
AADT2		CA	60	500	190			20	3001
		MI	24	835	779			15	2957
		GA	52	892	430			80	9490
		Total	136	709	430			15	9490
MEDTYPE	Total		136
	No Median	CA	21(15.4%)
		MI	24(17.6%)
		GA	24(17.6%)
		Total	69(50.7%)
	Painted	CA	24(17.6%)
		MI	0(0%)
		GA	21(15.4%)
		Total	45(33.1%)
	Curbed	CA	9(6.6%)
		MI	0(0%)
		GA	5(3.7%)
		Total	14(10.3%)
	Other	CA	6(4.4%)
		MI	0(0%)
		GA	2(1.5%)
		Total	8(5.9%)
MEDWDTH1		CA	60	5.2		2.5	0.0		36.0
		MI	24	0.0			0.0		0.0
		GA	52	27.0		20.0	0.0		63.0
		Total	136	12.6		6.0	0.0		63.0
HAU		CA	60	-2.0		0.0	-45.0		55.0
		MI	24	3.8		0.0	0.0		50.0
		GA	52	4.1		0.0	-65.0		90.0
		Total	136	1.3		0.0	-65.0		90.0

Table 241. Summary Statistics for Type III Sites by State: California (CA),

Michigan (MI), and Georgia (GA) (Continued)

Variables		State	No. of Sites	Mean
HAZRAT1	Total		136
	1	CA	2(1.5%)
		MI	14(10.3%)
		GA	0(0.0%)
		Total	16(11.8%)
	2	CA	29(21.3%)
		MI	8(5.9%)
		GA	21(15.4%)
		Total	58(42.6%)
	3	CA	12 (8.8%)
		MI	1(0.7%)
		GA	13(9.6%)
		Total	26(19.1%)
	4	CA	9(6.6%)
		MI	1(0.7%)
		GA	15(11.0%)
		Total	25(18.4%)
	5	CA	6(4.4%)
		MI	0(0.0%)
		GA	2(1.5%)
		Total	8(5.9%)
	6	CA	1(0.7%)
		MI	0(0.0%)
		GA	1(0.7%)
		Total	2(1.5%)
	7	CA	1(0.7%)
		MI	0(0.0%)
		GA	0(0.0%)
		Total	1(0.7%)
		MI	unknown
		GA	2(4.0%)
COMDRWY1		CA	60	1.5	0.0	0.0	14.0
		MI	24	2.9	2.0	0.0	11.0
		GA	52	0.7	0.0	0.0	9.0
		Total	136	1.5	0.0	0.0	14.0
RESDRWY1		CA	60	1.0	0.0	0.0	6.0
		MI	24	1.7	1.0	0.0	7.0
		GA	52	0.8	0.0	0.0	5.0
		Total	136	1.0	0.0	0.0	7.0
DRWY1		CA	60	2.5	0.0	0.0	15.0
		MI	24	4.6	5.0	0.0	11.0
		GA	52	1.5	1.0	0.0	9.0
		Total	136	2.5	1.0	0.0	15.0

Table 241. Summary Statistics for Type III Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables		State	No. of Sites	Mean
RTLN1	Total		136
	0	CA	44(32.4%)
		MI	24(17.6%)
		GA	40(29.4%)
		Total	108(79.4%)
	1	CA	16(11.8%)
		MI	0(0.0%)
		GA	12(8.8%)
		Total	28(20.6%)
LTLN1	Total		136
	0	CA	15(11.0%)
		MI	24(17.6%)
		GA	9(6.6%)
		Total	48(35.3%)
	1	CA	45(33.1%)
		MI	0(0.0%)
		GA	43(31.6%)
		Total	88(64.7%)
RTLN2	Total		136
	0	CA	55(40.4%)
		MI	19(14.0%)
		GA	43(31.6%)
		Total	117(86.0%)
	1	CA	5(3.7%)
		MI	5(3.7%)
		GA	9(6.6%)
		Total	19(14.0%)
LTLN2	Total		136
	0	CA	57(41.9%)
		MI	24(17.6%)
		GA	50(36.8%)
		Total	131(96.3%)
	1	CA	3(2.2%)
		MI	0(0.0%)
		GA	2(1.5%)
		Total	5(3.7%)
HI1		CA	60	1.52	0.00	0.00	14.29
		MI	24	1.36	0.00	0.00	9.15
		GA	52	0.90	0.00	0.00	6.30
		Total	136	1.26	0.00	0.00	14.29
HEI1		CA	60	2.17	0.00	0.00	14.29
		MI	24	3.21	0.00	0.00	26.63
		GA	52	1.28	0.88	0.00	6.30
		Total	136	2.01	0.73	0.00	26.63

Table 241. Summary Statistics for Type III Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables	State	No. of Sites		Mean	Median		Minimum	Maximum
GRADE1	CA	60		1.35	0.85		0.00	5.85
	MI	24		0.51	0.48		0.00	1.37
	GA	52		0.76	0.85		0.00	2.75
	Total	136		1.00	0.70		0.00	5.90
VEI1	CA	60		0.88	0.14		0.00	6.71
	MI	24		0.78	0.00		0.00	5.83
	GA	52		1.03	1.12		0.00	2.83
	Total	136		0.90	0.60		0.00	6.70
PKTRUCK	CA	60		9.53	7.91		1.18	28.16
	MI	24		8.21	7.59		2.93	16.63
	GA	unknown
	Total	84	9.15		7.79	1.18		28.16
PKTURN	CA	60	6.55		3.50	0.46		53.09
	MI	24	6.99		5.87	0.27		18.87
	GA	unknown
	Total	84	6.68		4.28	0.27		53.09
PKLEFT	CA	60	3.15		1.73	0.23		25.97
	MI	24	3.59		3.20	0.13		11.17
	GA	unknown
	Total	84	3.28		2.16	0.13		25.97
PKLEFT1	CA	60	1.44		0.62	0.00		21.29
	MI	24	1.54		0.97	0.00		5.95
	GA	unknown
	Total	84	1.47		0.69	0.00		21.29
PKLEFT2	CA	60	55.44		60.77	0.00		100.00
	MI	24	54.97		58.70	0.00		100.00
	GA	unknown
	Total	84	55.31		60.29	0.00		100.00
SD1	CA	60	1553		2000	500		2000
	MI	24	1519		2000	600		2000
	GA	52	1470		1715	560		2000
	Total	136	1515		2000	500		2000
SDL2	CA	60	1364		1365	40		2000
	MI	24	1486		1800	400		2000
	GA	52	1448		1533	170		2000
	Total	136	1418		1510	40		2000
SDR2	CA	60	1380		1424	80		2000
	MI	24	1408		1350	500		2000
	GA	52	1493		1865	510		2000
	Total	136	1428		1555	80		2000

TYPE IV

Table 242. Summary Statistics for Type IV Sites by State: California (CA), Michigan (MI), and Georgia (GA)

Variables		State	No. of Sites	Mean	Median	Minimum	Maximum
TOTACC per year		CA	54	1.4	0.8	0.0	7.2
		MI	18	3.1	2.2	0.0	10.8
		GA	52	2.1	2.0	0.0	6.5
		Total	124	2.0	1.4	0.0	10.8
INJACC per year		CA	54	0.8	0.5	0.0	5.7
		MI	18	1.0	0.9	0.0	3.2
		GA	52	1.0	1.0	0.0	4.5
		Total	124	0.9	0.5	0.0	5.7
AADT1		CA	54	13847	11199	3150	73799
		MI	18	10707	10550	5967	19384
		GA	52	12631	12850	5300	25799
		Total	124	12881	11496	3150	73799
AADT2		CA	54	441	301	21	1850
		MI	18	913	733	254	2018
		GA	52	706	463	300	2990
		Total	124	621	430	21	2990
MEDTYPE	Total		124
	No Median	CA	13(10.5%)
		MI	18(14.5%)
		GA	39(31.5%)
		Total	70(56.5%)
	Painted	CA	17(13.7%)
		MI	0(0.0%)
		GA	10(8.1%)
		Total	27(21.8%)
	Curbed	CA	22(17.7%)
		MI	0(0.0%)
		GA	3(2.4%)
		Total	22(17.7%)
	Other	CA	2(1.6%)
		MI	0(0.0%)
		GA	0(0.0%)
		Total	5(4.0%)

Table 242. Summary Statistics for Type IV Sites by State: California (CA),

Michigan (MI), and Georgia (GA) (Continued)

Variables		State	No. of Sites	Mean	Median	Minimum	Maximum
MEDWDTH1		CA	54	5.0	4.6	0.0	36
		MI	18	0	0	0	0
		GA	52	33.1	40.0	0.0	60
		Total	124	16.1	6.5	0	60
HAU		CA	54	0.8	0.0	-20.0	22.5
		MI	18	1.1	0.0	-20.0	30.0
		GA	52	2.40	1.25	-50.0	55.0
		Total	124	1.5	0.0	-50.0	55.0
HAZRAT1	Total		124
	1	CA	13(10.5%)
		MI	8(6.5%)
		GA	3(2.4%)
		Total	24(19.4%)
	2	CA	20(16.1%)
		MI	9(7.3%)
		GA	14(11.3%)
		Total	43(34.7%)
	3	CA	11(8.9%)
		MI	1(0.8%)
		GA	20(16.1%)
		Total	32(25.8%)
	4	CA	8(6.5%)
		MI	0(0.0%)
		GA	13(10.5%)
		Total	21(16.9%)
	5	CA	1(0.8%)
		MI	0(0.0%)
		GA	1(0.8%)
		Total	2(1.6%)
	6	CA	1(0.8%)
		MI	0(0.0%)
		GA	1(0.8%)
		Total	2(1.6%)
	7	CA	0(0.0%)
		MI	0(0.0%)
		GA	0(0.0%)
		Total	0(0.0%)
COMDRWY1		CA	54	0.7	0.0	0.0	12.0
		MI	18	1.3	0.5	0.0	7.0
		GA	52	0.3	0.0	0.0	2.0
		Total	124	0.6	0	0	12

Table 242. Summary Statistics for Type IV Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables		State	No. of Sites	Mean	Median	Minimum	Maximum
RESDRWY1		CA	54	0.6	0.0	0.0	6.0
		MI	18	2.5	2	0	7
		GA	52	0.2	0.0	0.0	2.0
		Total	124	0.7	0	0	7
DRWY1		CA	54	1.3	0.0	0.0	15.0
		MI	18	3.8	4.0	0.0	9.0
		GA	52	0.4	0.0	0.0	3.0
		Total	124	1.3	0	0	15
SPD1		CA	54	56.4	55.0	25	65
		MI	18	45.3	42.5	35	55
		GA	52	58.4	55.0	45	65
		Total	124	55.6	55	25	65
SPD2		CA	54	35.0	35.0	25	50
		MI	18	28.2	25.0	25	45
		GA	52	36.6	35.0	25	55
		Total	124	34.7	35.0	25	55
LIGHT	Total		124
	0	CA	36(29.0%)
		MI	4(3.2%)
		GA	47(37.9%)
		Total	87(70.2%)
	1	CA	18(14.5%)
		MI	14(11.3%)
		GA	5(4.0%)
		Total	37(29.8%)
TERRAIN1	Total		124
	Flat	CA	32(25.8%)
		MI	18(14.5%)
		GA	40(32.3%)
		Total	90(72.6%)
	Rolling	CA	13(10.5%)
		MI	0(0.0%)
		GA	12(9.7%)
		Total	25(20.2%)
	Mountainous	CA	9(7.3%)
		MI	0(0.0%)
		GA	0(0.0%)
		Total	9(7.3%)

Table 242. Summary Statistics for Type IV Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables		State	No. of Sites
RTLN1	Total		124
	0	CA	27(21.8%)
		MI	18(14.5%)
		GA	24(19.4%)
		Total	69(55.6%)
	1	CA	7(5.6%)
		MI	0(0.0%)
		GA	13(10.5%)
		Total	20(16.1%)
	2	CA	20(16.1%)
		MI	0(0.0%)
		GA	15(12.1%)
		Total	35(28.2%)
LTLN1	Total		124
	0	CA	4(3.2%)
		MI	18(14.5%)
		GA	7(5.6%)
		Total	29(23.4%)
	1	CA	4(3.2%)
		MI	0(0.0%)
		GA	1(0.8%)
		Total	5(4.0%)
	2	CA	46(37.1%)
		MI	0(0.0%)
		GA	44(35.5%)
		Total	90(72.6%)
RTLN2	Total		124
	0	CA	33(26.6%)
		MI	12(9.7%)
		GA	27(21.8%)
		Total	72(58.1%)
	1	CA	7(5.6%)
		MI	3(2.4%)
		GA	3(2.4%)
		Total	13(10.5%)
	2	CA	14(11.3%)
		MI	3(2.4%)
		GA	22(17.7%)
		Total	39(31.5%)

Table 242. Summary Statistics for Type IV Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables			No. of Sites	Mean
LTLN2	Total		124
	0	CA	52(41.9%)
		MI	18(14.5%)
		GA	52(41.9%)
		Total	122(98.4%)
	1	CA	2(1.6%)
		MI	0(0.0%)
		GA	0(0.0%)
		Total	2(1.6%)
	2	CA	0(0.0%)
		MI	0(0.0%)
		GA	0(0.0%)
		Total	0(0.0%)
HI1		CA	54	1.24	0.00	0.00	7.07
		MI	18	0.83	0.00	0.00	7.33
		GA	52	0.62	0.29	0.00	2.50
		Total	124	0.92	0	0	7.33
HEI1		CA	54	1.47	0.00	0.00	7.07
		MI	18	15.65	0.00	0.00	233.33
		GA	52	0.88	0.72	0.00	3.49
		Total	124	3.28	0.6	0	233.33
GRADE1		CA	54	1.19	0.67	0.00	5.80
		MI	18	0.32	0.00	0.00	2.25
		GA	52	0.89	0.85	0.00	2.30
		Total	124	0.94	0.71	0.00	5.80
VEI1		CA	54	0.5	0.0	0.0	3.7
		MI	18	1.3	0.0	0.0	12.5
		GA	52	1.09	1.05	0.00	2.79
		Total	124	0.87	0.35	0	12.5
VI1		CA	54	0.4	0.0	0.0	3.1
		MI	18	1.1	0.0	0.0	12.5
		GA	52	0.71	0.45	0.00	3.23
		Total	124	0.62	0	0	12.5
VCI1		CA	54	0.1	0.0	0.0	3.1
		MI	18	1.04	0.00	0.00	12.50
		GA	52	0.50	0.00	0.00	2.57
		Total	124	0.43	0	0	12.5

Table 242. Summary Statistics for Type IV Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables	State	No. of Sites	Mean	Median	Minimum	Maximum
VCEI1	CA	54	0.3	0.0	0.0	3.2
	MI	18	1.12	0.00	0.00	12.50
	GA	52	0.80	0.56	0.00	2.57
	Total	124	0.63	0	0	12.5
PKTRUCK	CA	54	11.99	8.92	2.22	37.25
	MI	18	7.83	7.94	1.75	13.13
	GA	unknown
	Total	72	10.95	8.36	1.75	37.25
PKTURN	CA	54	7.93	4.87	0.00	48.52
	MI	18	14.10	9.53	4.54	32.55
	GA	unknown
	Total	72	9.47	6.56	0	48.52
PKLEFT	CA	54	4.05	2.54	0.00	25.26
	MI	18	7.04	4.75	2.14	16.76
	GA	unknown
	Total	72	4.8	3.08	0	25.26
PKLEFT1	CA	54	2.25	1.02	0.00	13.96
	MI	18	4.36	3.10	0.83	11.56
	GA	unknown
	Total	72	2.78	1.51	0	13.96
PKLEFT2	CA	54	39.78	37.12	0.00	100.00
	MI	18	36.22	34.10	13.61	58.65
	GA	unknown
	Total	72	38.89	36.66	0	100
PKTHRU1	CA	54	95.27	97.71	67.77	100.00
	MI	18	91.85	94.51	79.20	98.26
	GA	unknown
	Total	72	94.41	96.95	67.77	100
PKTHRU2	CA	54	15.44	8.26	0.00	68.09
	MI	18	16.45	18.19	0.96	39.39
	GA	unknown
	Total	72	15.69	10.82	0	68.09
SD1	CA	54	1431	1519	400	2000
	MI	18	1430	1310	580	2000
	GA	52	1356	1301	639	2000
	Total	124	1399	1332	400	2000
SDL2	CA	54	1382	1470	324	2000
	MI	18	1286	1203	394	2000
	GA	52	1254	1182	579	2000
	Total	124	1314	1262	324	2000
SDR2	CA	54	1384	1470	215	2000
	MI	18	1356	1255	479	2000
	GA	52	1263	1206	540	2000
	Total	124	1329	1354	215	2000

TYPE V

Table 243. Summary Statistics for Type V Sites by State: California (CA), Michigan (MI), and Georgia (GA)

Variables		State	No. of Sites	Mean	Median	Minimum	Maximum
TOTACC per year		CA	18	5.2	5.3	1.3	10.7
		MI	31	8.1	8.0	2.0	14.8
		GA	51	4.8	3.5	0.0	26.5
		Total	100	5.9	5.3	0	26.5
INJACC per year		CA	18	2.0	1.8	0.3	4.0
		MI	31	2.6	2.5	0.0	6.5
		GA	51	1.2	0.5	0.0	6.5
		Total	100	1.8	1.5	0	6.5
AADT1		CA	18	13095	12650	7340	25132
		MI	31	9007	8435	4917	17483
		GA	51	7798	7400	430	15200
		Total	100	9126	8700	430	25132
AADT2		CA	18	3642	3026	940	10280
		MI	31	4796	4434	1961	12478
		GA	51	2749	2200	420	10400
		Total	100	3544	3100	420	12478
SIGTYPE	Total		100
	Pretimed	CA	0
		MI	22
		GA	11
		Total	33
	Actuated	CA	17
		MI	4
		GA	24
		Total	45
	Semiactuated	CA	1
		MI	5
		GA	16
		Total	22

Table 243. Summary Statistics for Type V Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables		State	No. of Sites	Mean	Median	Minimum	Maximum
MEDTYPE	Total		100
	No Median	CA	12
		MI	31
		GA	44
		Total	87
	Painted	CA	5
		MI	0
		GA	7
		Total	12
	Other	CA	1
		MI	0
		GA	0
		Total	1
MEDWIDTH1		CA	18	3	0	0	13
		MI	31	0	0	0	0
		GA	51	1.5	0	0	13
		Total	100	1.3	0	0	13
HAU		CA	18	3.33	0	-10	30
		MI	31	-3.06	0	-45	40
		GA	51	0.82	0	-45	35
		Total	100	0.07	0	-45	40
HAZRAT1	Total		100
	1	CA	3
		MI	7
		GA	2
		Total	12
	2	CA	5
		MI	15
		GA	9
		Total	29
	3	CA	6
		MI	8
		GA	13
		Total	27
	4	CA	2
		MI	1
		GA	13
		Total	16
	5	CA	1
		MI	0
		GA	12
		Total	13

Table 243. Summary Statistics for Type V Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables		State	No. of Sites	Mean	Median	Minimum	Maximum
HAZRAT1	6	CA	1
		MI	0
		GA	2
		Total	3
	7	CA	0
		MI	0
		GA	0
		Total	0
COMDRWY1		CA	18	1.6	1	0	6
		MI	31	2.9	3	0	11
		GA	51	2.9	2	0	9
		Total	100	2.6	2	0	11
RESDRWY1		CA	18	0.3	0	0	5
		MI	31	0.9	0	0	6
		GA	51	0.4	0	0	4
		Total	100	0.5	0	0	6
DRWY1		CA	18	1.9	1	0	7
		MI	31	3.8	3	0	15
		GA	51	3.2	3	0	9
		Total	100	3.2	3	0	15
SPD1		CA	18	50.8	55	35	65
		MI	31	47.4	50	30	55
		GA	51	41.8	45	25	55
		Total	100	45.2	45	25	65
SPD2		CA	18	45	45	30	55
		MI	31	43.1	45	25	55
		GA	51	38.1	35	20	55
		Total	100	40.9	40	20	55
LIGHT	Total		100
	0	CA	1
		MI	9
		GA	19
		Total	29
	1	CA	17
		MI	22
		GA	32
		Total	71

Table 243. Summary Statistics for Type V Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables		State		No. of Sites
TERRAIN1	Total			100
	Flat	CA		11
		MI		25
		GA		23
		Total		59
	Rolling	CA		5
		MI		6
		GA		27
		Total		38
	Mountainous	CA		2
		MI		0
		GA		1
		Total		3
PROTLT1	Total			100
	0		CA	1
			MI	27
			GA	42
			Total	70
	1		CA	17
			MI	4
			GA	9
			Total	30
RTLN1	Total			100
	0		CA	7
			MI	14
			GA	30
			Total	51
	1		CA	3
			MI	5
			GA	13
			Total	21
	2		CA	8
			MI	12
			GA	8
			Total	28

Table 243. Summary Statistics for Type V Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables		State		No. of Sites
LTLN1	Total			100
	0	CA		0
		MI		7
		GA		16
		Total		23
	1	CA		0
		MI		1
		GA		1
		Total		2
	2	CA		18
		MI		23
		GA		34
		Total		75
RTLN2	Total			100
	0		CA	12
			MI	14
			GA	33
			Total	59
	1		CA	3
			MI	7
			GA	10
			Total	20
	2		CA	3
			MI	10
			GA	8
			Total	21
LTLN2	Total			100
	0		CA	8
			MI	9
			GA	28
			Total	45
	1		CA	0
			MI	3
			GA	2
			Total	5
	2		CA	10
			MI	19
			GA	21
			Total	50

Table 243. Summary Statistics for Type V Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables	State	No. of Sites	Mean	Median	Minimum	Maximum
HEI	CA	18	2.10	1.65	0.00	9.82
	MI	31	6.38	0.00	0.00	94.87
	GA	51	3.13	0.65	0.00	49.90
	Total	100	3.95	0.61	0.00	94.87
HEI2	CA	18	4.40	0.00	0.00	36.41
	MI	31	0.89	0.00	0.00	12.22
	GA	51	2.85	0.00	0.00	19.00
	Total	100	2.52	0.00	0.00	36.41
HI1	CA	18	1.22	0.00	0.00	9.82
	MI	31	3.31	0.00	0.00	60.00
	GA	51	1.78	0.00	0.00	49.90
	Total	100	2.15	0.00	0.00	60.00
HI2	CA	18	3.25	1.48	0.00	19.16
	MI	31	3.63	0.00	0.00	47.44
	GA	51	1.70	0.00	0.00	27.05
	Total	100	2.58	0.00	0.00	47.44
HEICOM	CA	18	2.46	0.00	0.00	18.72
	MI	31	1.93	0.00	0.00	30.00
	GA	51	2.99	1.09	0.00	32.54
	Total	100	2.56	0.58	0.00	32.54
HICOM	CA	18	2.23	0.79	0.00	10.72
	MI	31	3.47	0.00	0.00	42.05
	GA	51	1.74	0.00	0.00	32.54
	Total	100	2.36	0	0	42.05
GRADE1	CA	18	0.88	0.58	0.00	3.45
	MI	31	0.80	0.83	0.00	3.31
	GA	51	1.56	1.45	0.00	4.98
	Total	100	1.20	1.00	0.00	4.98
GRADE2	CA	18	1.01	0.59	0.00	5.30
	MI	31	1.00	0.71	0.00	4.00
	GA	51	1.99	1.65	0.00	7.79
	Total	100	1.50	1.28	0.00	7.79
VEI1	CA	18	1.40	0.46	0.00	11.97
	MI	31	1.43	0.94	0.00	6.83
	GA	51	1.48	1.45	0.00	4.98
	Total	100	1.45	1.19	0.00	11.97

Table 243. Summary Statistics for Type V Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables	State	No. of Sites	Mean	Median	Minimum	Maximum
VEI2	CA	18	2.41	0.71	0.00	11.53
	MI	31	1.65	0.65	0.00	13.50
	GA	51	1.90	1.65	0.00	7.79
	Total	100	1.91	1.39	0.00	13.50
VEICOM	CA	18	2.03	1.33	0.00	8.13
	MI	31	1.87	1.62	0.00	6.75
	GA	51	1.69	1.60	0.00	4.79
	Total	100	1.81	1.59	0.00	8.13
VCEI1	CA	18	1.38	0.00	0.00	10.79
	MI	31	0.66	0.00	0.00	4.77
	GA	51	1.26	1.15	0.00	5.18
	Total	100	1.10	0.45	0.00	10.79
VCEI2	CA	18	1.72	0.17	0.00	12.13
	MI	31	1.24	0.31	0.00	14.00
	GA	51	1.66	1.41	0.00	8.40
	Total	100	1.54	0.90	0.00	14.00
VCEICOM	CA	18	1.55	0.82	0.00	6.07
	MI	31	0.95	0.47	0.00	7.00
	GA	51	1.46	1.30	0.00	5.08
	Total	100	1.32	1.03	0.00	7.00
PKTRUCK	CA	18	7.36	6.43	2.69	15.45
	MI	31	9.89	8.37	2.97	45.43
	GA	unknown
	Total	49	8.96	7.71	2.69	45.43
PKTURN	CA	18	30.74	29.90	7.07	72.66
	MI	31	38.48	35.29	26.00	61.03
	GA	unknown
	Total	49	35.64	34.48	7.07	72.66
PKLEFT	CA	18	15.80	14.51	4.20	37.07
	MI	31	19.54	19.09	11.88	31.58
	GA	unknown
	Total	49	18.17	17.97	4.2	37.07
PKLEFT1	CA	18	13.83	11.36	1.78	43.23
	MI	31	15.66	16.32	4.60	36.67
	GA	unknown
	Total	49	14.99	13.15	1.78	43.23

Table 243. Summary Statistics for Type V Sites by State: California (CA), Michigan (MI), and Georgia (GA) (Continued)

Variables	State	No. of Sites	Mean	Median	Minimum	Maximum
PKLEFT2	CA	18	28.90	25.21	2.59	68.57
	MI	31	27.80	24.88	9.91	75.73
	GA	unknown
	Total	49	28.21	24.88	2.59	75.73
PKTHRU1	CA	18	74.49	80.83	18.01	96.73
	MI	31	69.27	70.37	44.40	85.33
	GA	unknown
	Total	49	71.19	73.77	18.01	96.73
PKTHRU2	CA	18	44.68	39.17	9.34	84.09
	MI	31	43.44	45.78	8.45	73.14
	GA	unknown
	Total	49	43.9	41.99	8.45	84.09
SD1	CA	18	1482	2000	267	2000
	MI	31	1447	1500	522	2000
	GA	51	1175	1086	235	2000
	Total	100	1314	1246	235	2000
SD2	CA	18	1420	1750	390	2000
	MI	31	1389	1212	509	2000
	GA	51	1033	961	224	2000
	Total	100	1213	1091	224	2000
SDL1	CA	18	815	454	188	2000
	MI	31	814	615	200	2000
	GA	51	735	709	122	2000
	Total	100	774	673	122	2000
SDL2	CA	18	1011	787	269	2000
	MI	31	1041	850	253	2000
	GA	51	794	739	142	2000
	Total	100	910	750	142	2000

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Page Owner: Office of Research, Development, and Technology, Office of Safety, RDT

Topics: research, safety, intersection safety
Keywords: research, safety, Accident modification factors, Traffic safety, Signalized intersections, Crash models, Crash model validation, Interactive highway safety design model
TRT Terms: Traffic accidents–United States–Forecasting, Roads–United States–Interchanges and intersections–Mathematical models, Rural roads–United States, Low-volume roads–United States, signalized intersections
Scheduled Update: Archive - No Update needed

This page last modified on 03/08/2016