Download analysis of accident rates by age, gender, and time of day based on the 1990 nationwide personal ... PDF

Titleanalysis of accident rates by age, gender, and time of day based on the 1990 nationwide personal ...
LanguageEnglish
File Size3.1 MB
Total Pages90
Document Text Contents
Page 1

ANALYSIS OF ACCIDENT RATES BY AGE,
GENDER, AND TIME OF DAY BASED ON THE 1990

NATIONWIDE PERSONAL TRANSPORTATION SURVEY

Dawn L. Massie
and

Kenneth L. Campbell

February 1993

FINAL REPORT

The L'n~versity of Michigan
Transportation Research Institute
Ann Arbor, Michigan 48109-2150

Page 2

1990 NPTS

This work was supported by the Insurance Institute for Highway
Safety. The opinions, finhngs, and conclusions expressed in this
publication are those of the authors and do not necessarily reflect
the views of the Insurance Institute for Highway Safety.

Page 45

Mileage-Based Rates by Light Condition

lnjury Rates: Day vs. Ni ht by Age
1 990 GES and 1 990 8 PTS

16-19 2529 3539 45-49 5559 65-69 75t
20-24 30-34 40-44 50-54 60-64 70-74

Age -P

Figure 5-5

There is an interesting difference in the injury involvement rates between
men and women according to light condition (Fig. 5-6). During the day, female
drivers had a higher rate than male drivers, but this was reversed a t nighttime. The
difference in rates between men and women was not large in either case. During the
day, the female rate was 1.4 times the male rate, and a t night, the male rate was 1.2
times the female rate. Nighttime rates exceeded daytime rates for both men and
women, but especially for men.

Injury Rates: Day vs. Night b Gender
1990GES and 1990 NPT g

.............

.............

Figure 5-6

-33-

Page 46

1990 NPTS

Daytime injury involvement rate curves for men and women by age group are
plotted in Figure 5-7. The rates were very similar in the early age groups, but
beyond age 25 women had the higher rates. This is very similar to the pattern
observed for injury involvements during all times of day. During the daytime,
teenage drivers had the highest rates among both men and women (Table A-21),
although the rate for women 75 and over (6.0 involvements per million miles) was
very close to the rate for teenage women (6.7 involvements).

>

Daytime Injury Rates by Gender
1 990 G ES and 1 990 N PTS

8

+ Male + Female
..............................................................

0- 1
16-19 25-29 3539 4549 55-59 65-69 75+

20-24 3034 4044 50-54 60-64 70-74
Ase Grwp

Figure 5-7

The nighttime injury rate curves are shown in Figure 5-8. Men and women
had very similar rates in every age group except the 20-24 group, Male drivers that
age had a rate of 8.7 involvements per million miles, which is 2.7 times the female
rate of 3.2 (Table A-22). The difference in rates between males and females in this
age group is largely responsible for the overall higher nighttime injury rates for men
compared to women.

Page 89

Appendix

Table A-33
lnjury lnvolvements Per Million Miles

Males vs. Females, 198244 NASS and 1983 NPTS

Table A-34
All lnvolvements Per Mlllion Miles

Males vs. Females, 1982-84 NASS and 1983 NPTS

Age Group

16-19
20-24
25-29
30-34
35-39
40-44
45-49
50-54
55-59
60-64
65-69
70-74
75t
Unknown

Total

Females Males

Injury
Involvements

21 7,275
228,889
199,783
153,111
131,038
92,423
69,073
54,492
44,876
41,365
35,784
29,035
19,899
4,332

1,321,374

Age Group

16-1 9
20-24
25-29
30-34
35-39
40-44
45-49
50-54
55-59
60-64
65-69
70-74
75+
Unknown

Total

Females

Injury
Rate

10.46
4.62
3.10
2.08
1.92
1.46
1.84
1.71
1.88
1.61
2.38
5.58
8.09
-

2.84

Injury
Involvements

327,070
421,703
329,477
244,943
173,043
119,773
97,913
92,517

107,434
70,724
51,228
50,648
60,800
25,516

2,172,790

lo6 VMT

18,181
48,898
53,900
56,366
53,224
36,317
26,072
23,863
18,541
17,453
7,874
6,422
2,889

0

370,000

All
Involvements

461,659
549,917
475,601
379,732
288,170
21 6,523
167,161
134,493
113,550
118,191
82,103
57,776
69,103
41,945

3,155,924

Males

1 o6 VMT
31,269
91,347

106,367
117,943
89,914
82,010
53,314
54,104
57,230
43,948
21,498
9,075
7,517

0

765.536

Injury
Rate

11.95
4.68
3.71
2.72
2.46
2.54
2.65
2.28
2.42
2.37
4.54
4.52
6.89
-

3.57

All
Involvements

827,821
1,042,849

819,944
579,981
481,362
308,294
253,215
219,945
241,793
204,222
169,632
126,692
137,493
1 1 0,373

5,523,614

lo6 VMT
18,181
48,898
53,900
56,366
53,224
36,317
26,072
23,863
18,541
17,453
7,874
6,422
2,889

0

370,000

Overall
Rate

25.39
11.25
8.82
6.74
5.41
5.96
6.41
5.64
6.12
6.77

10.43
9.00

23.92
-

8.53

1 o6 VMT
31.269
91.347

106.367
1 17.943
89.914
82.010
53.314
54.1 04
57.230
43.948
21.498
9.075
7,517

0

765.536

Overall
Rate

26.47
1142
7.71
4.92
5.35
3.76
4.75
4.07
4 22
465
7 89

13 %
1829
-

7.22

Similer Documents