Maryland Older Driver Crashes, 2007-2011...Maryland Older Driver Crashes, 2007-2011 Timothy Kerns, MS Epidemiologist [email protected] Cindy Burch, MPH Epidemiologist [email protected]

Maryland Older Driver Crashes, 2007-2011

Timothy Kerns, MS Epidemiologist [email protected]

Cindy Burch, MPH Epidemiologist [email protected]

Hospital Records

Autopsy Records Statewide

Trauma Registry

Ambulance & EMS Logs

Police Crash Reports

Vital Statistics

ED Data

MVA Licensing

Driver Citations

Toxicology

Available Injury Data Sources in Maryland

Motorcycle Safety

Maryland Crash Data 2007 – 2011

• Statewide Older Driver Crash Summary

• Older Driver crash & injury characteristics

• CIREN Case Review

Statewide Older Driver Crash Summary, 2007-2011

-11

2711

-11

19

54 54

162

37

123

84

-25

-5

15

35

55

75

95

115

135

%

Licensed Drivers by Age-Percentage of Change 2000-2012

33

72

104

-16-6

-1

37

-13-25

-15

-5

5

15

25

35

45

%

Driver's Age

Percentage of Increase/Decrease of Total Crashes by Age from 2009 to 2011

Statewide Crash Summary, 2007 - 2011

Older Drivers have the lowest crash involvement rate per 10,000 licensed drivers.

258.0

220.4 197.3

175.3

839.8

636.3

0.0

100.0

200.0

300.0

400.0

500.0

600.0

700.0

800.0

900.0

2007 2008 2009 2010 2011

Crash Involvement Rate per 10,000 Licensed Drivers by Driver Age and Year, 2007-2011

Statewide Older Drivers (65+) Younger Drivers (16-20)


The Older Driver injury crash involvement rate is almost the same as the statewide rate.

89.1 74.5 86.3 73.0

325.3

250.4

0.0

50.0

100.0

150.0

200.0

250.0

300.0

350.0

2007 2008 2009 2010 2011

Injury Crash Involvement Rate per 10,000 Licensed Drivers by Driver Age and Year, 2007-2011



The Younger Driver fatal crash involvement rate has declined over the past 5 years.

1.4 1.1 1.4 1.2

4.3

3.1

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

2007 2008 2009 2010 2011

Fatal Crash Involvement Rate per 10,000 Licensed Drivers by Driver Age and Year, 2007-2011


Total Crashes

Total Injury Crashes

Total Fatal Crashes

2007

7,357

4,448

71

2011

4,917

4,244

72

- 33.2%

- 4.6%

+ 1.4%

2007 & 2011 Comparison of Older Driver Crashes

% Change (Approx.)

Statewide Older Driver Crash Summary, 2007 - 2011

Average Crash Type Percentages by Age, 2007-2011

4%

28%

10%

9%

22%

5%

4%

9%

1% 8%

Older Driver Crash Types (N=8,483)

Opposite Direction

Rear End

Left Turn

Sideswipe

Angle

Parked Vehicle

Pedestrian/Pedalcycle

Fixed Object

Run Off Road

Other

3%

24%

5%

8%

13% 12%

4%

18%

3% 10%

All Crash Types (N=78,016)

Opposite Direction

Rear End

Left Turn

Sideswipe

Angle

Parked Vehicle

Pedestrian/Pedalcycle

Fixed Object

Run Off Road

Other

Statewide Older Driver Crash Summary, 2007 - 2011

Percentage of Drivers Reported At-Fault by Age Group, 2011

Statewide Older Driver Crash Summary, 2011

N=12,399 N=31,077 N=49,653 N=21,976 N=6,283 N=2,775 N=896

5

87

5 54

3 2 2 2 2

0

2

4

6

8

10

%

Driver Impaired as a Contributing Factor of Crash by Age, 2009-2011

65

43 3 3 3 3 4 4

3

0

2

4

6

8

%

Aggressive Driver as a Contributing Factor of Crash by Age, 2009-2011

20

1612

9 8 7 6 5 6 6 6

0

5

10

15

20

25

%

Speeding as a Contributing Factor of Crash by Age, 2009-2011

49

42

3631 30 31

3437

42

49

43

25

30

35

40

45

50

%

Inattentive Driver as a Contributing Factor of Crash by Age, 2009-2011

0

25,000

50,000

75,000

100,000

40

50

60

70

16-20 21-24 25-34 35-44 45-54 55-64 65-69 70-74 75-79 80-89 90-100

Tota

l Cra

she

s

% o

f D

rive

rs R

ep

ort

ed

At

Fau

lt

Total Crashes v. Reported At Fault by Age, 2009-2011

At Fault Total Crashes

60 63 61 60 5955

50 48 46 4347

25 22 22 23 24 2730 33 35 36

32

7 7 7 7 7 7 8 7 7 7 7

0

10

20

30

40

50

60

70

%

Intersection Type by At-Fault Driver's Age, 2009-2011

Non-Intersection Intersection Intersection-Related

0

20

40

60

80

100

120

140

160

180

200

16-20 21-24 25-34 35-44 45-54 55-64 65-69 70-74 75-79 80-89 90-99

Rat

e p

er

1,0

00

Lic

en

sed

Dri

vers

Citation Rate by Age, 2009-2011

Belt Use

Susp/Rev

Impaired

Red light

Not Auth

Fail to Yield

Aggressive

Expired

Older Driver Fatal Crash & Injury Data

Fatal Crash & Injury Data

Jurisdictional Data

**”N” values represent 2011 figures

Older Driver Data, 2007 - 2011

-.06%

9%

2%

11%

4%

9% 9%

12%

3%

10%

8% 9%

16%

8% 7%

11%

9% 9%

3%

7%

4% 5%

4%

-1% -2%

0%

2%

4%

6%

8%

10%

12%

14%

16%

18%

Pe

rce

nta

ge

Percent Change in Older (65+) Licensed Drivers by Jurisdiction, 2007 - 2011

Percent Change in Older (65+) Driver Crashes by Jurisdiction, 2007 - 2011

**”N” values represent 2011 figures

Older Driver Crash Data, 2007 - 2011

2%

12%

-10%

3%

9%

-7%

18%

-15%

-1%

-11%

10% 7%

11%

-13%

6% 6%

-2%

0%

-27%

-6%

-10% -14%

-5%

3%

-30%

-25%

-20%

-15%

-10%

-5%

0%

5%

10%

15%

20%

Number of Older Driver Injury Crashes by Jurisdiction, 2011 (N=4,244)

**Jurisdictions not listed had less than 50 injury crashes

Older Driver Injury Crash Data, 2011

732677

526470

412

185126 123 118 116 108 102 92 85 69 52 51

0

100

200

300

400

500

600

700

800

Total Number of Older Driver Fatal Crashes by Jurisdiction, 2011 (N=72)

**Jurisdictions not listed had less than 3 fatal crashes

Older Driver Fatal Crash Data, 2011

11

8 8

7

5

4

3 3

0

2

4

6

8

10

12

Baltimore Montgomery PrinceGeorge's

Harford AnneArundel

Talbot Carroll Washington

Monthly Data


Average Older Driver Crash Percentages by Month 2007-2011 (N=10,083)

Older Driver Crash Data, 2007-2011

7.5% 6.9%

7.7%

8.2%

8.9%

8.4%

8.0% 8.0%

8.4%

9.5%

9.3%

9.1%

6.0%

6.5%

7.0%

7.5%

8.0%

8.5%

9.0%

9.5%

10.0%

Average Older Driver Injury Crash & Fatal Crash Percentages by Month 2007 – 2011

Older Driver fatal crashes occur more frequently in April, October and November, while injury crashes are consistent from May through December.

Older Driver Fatal Crash & Injury Data, 2007 - 2011

7.1%

6.5%

9.3%

8.3% 8.7%

9.6%

8.6%

6.4%

7.1%

10.7%

7.9%

7.1%

9.9%

8.4%

6%

7%

8%

9%

10%

11%

12%

Injury Crashes Fatal Crashes

N=4,292 N=79

Fatal Crashes ALL Drivers

Fatal Crashes OLDER Drivers

Injury Crashes ALL Drivers

Injury Crashes OLDER Drivers

1. August April October October

2. July November May May

3. May May June November

4. September June July June

5. November September September September

6. October December August December

7. April August April August

8. June March November July

9. December July December April

10. January February January March

11. March October March January

12. February January February February

Fatal v. Injury Crash Percentage - Comparison by Month & Age, 2007 - 2011


Day of Week Data


Older Driver Crash Data 2011

Average Older Driver Crash Percentages by Day of Week 2007-2011 (N=10,083)

14.4%

15.4% 15.9% 16.0%

17.1%

12.1%

9.1%

8.0%

9.0%

10.0%

11.0%

12.0%

13.0%

14.0%

15.0%

16.0%

17.0%

18.0%

Monday Tuesday Wednesday Thursday Friday Saturday Sunday

All Older Driver crashes, injury and fatal, are less frequent on the weekends.


Older Driver Injury Crash & Fatal Crash Percentages by Day of Week, 2007 – 2011

14.7%

15.7%

16.7%

9.6% 10.2%

14.2%

17.8%

11.7%

9%

10%

11%

12%

13%

14%

15%

16%

17%

18%

Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Injury Crashes Fatal Crashes

N=4,292 N=79





1. Saturday Friday Friday Friday

2. Sunday Thursday Saturday Wednesday

3. Friday Tuesday Thursday Thursday

4. Thursday Wednesday Tuesday Tuesday

5. Wednesday Saturday Wednesday Monday

6. Monday Sunday Monday Saturday

7. Tuesday Monday Sunday Sunday


Fatal v. Injury Crash Percentage - Comparison by Day & Age, 2007 - 2011

Time of Day Data



Older Driver Injury Crash & Fatal Crash Percentages by Time of Day, 2007 – 2011

0%

2%

4%

6%

8%

10%

12%

12

:00

AM

1:0

0 A

M

2:0

0 A

M

3:0

0 A

M

4:0

0 A

M

5:0

0 A

M

6:0

0 A

M

7:0

0 A

M

8:0

0 A

M

9:0

0 A

M

10

:00

AM

11

:00

AM

12

:00

PM

1:0

0 P

M

2:0

0 P

M

3:0

0 P

M

4:0

0 P

M

5:0

0 P

M

6:0

0 P

M

7:0

0 P

M

8:0

0 P

M

9:0

0 P

M

10

:00

PM

11

:00

PM

All Crashes Injury Crashes Fatal Crashes N=10,083 N=4,292 N=79





1. 4-8pm Noon-4PM 4-8pm Noon-4PM

2. 8-Midnight 8-Noon Noon-4pm 8-Noon

3. Midnight-4am 4-8PM 8-Noon 4-8PM

4. Noon-4pm 8-Midnight 8-Midnight 8-Midnight

5. 8-Noon 4-8AM 4-8am 4-8AM

6. 4-8am Midnight-4AM Midnight-4am Midnight-4AM

Fatal v. Injury Crash Percentage - Comparison by Time of Day & Age, 2007 - 2011


Gender

Data


Crash Totals, Injury Crashes & Fatal Crashes by Driver Gender, 2007-2011

Total Crashes: More male Older Drivers are involved in crashes than females.


Fatal Crashes: More male Older Drivers are involved in fatal crashes than females.

Injury Crashes: Gender of Older Drivers involved in injury crashes is equally distributed.

N=10,578 N=2,474 N=47

59.1%

40.5%

0.4%

Male Female Unknown

50.4% 49.5%

0.1%

Male Female Unknown

68.4%

31.6%

Male Female

Documents

Maryland Older Driver Crashes, 2007-2011...Maryland Older Driver Crashes, 2007-2011 Timothy Kerns, MS Epidemiologist [email protected] Cindy Burch, MPH Epidemiologist [email protected]