Automated Vehicle Crash Rate Comparison Using Naturalistic Data

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Jan 7, 2016 - SHRP 2 Age-Adjusted. Self-Driving Car in Autonomous Mode ... School. Bypass/Divided Highway. Open Resident
SHRP 2 Age-Adjusted

Self-Driving Car in Autonomous Mode

Crash Rate per Million Miles

20

14.4

15

10 5.6 5 2.5

3.3

1.6

1.6

0 Level 1

Level 2

Level 3

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Research Questions 1 and 2: How many crashes go unreported to police or insurance? Do unreported crash rates vary by location?

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Kinematic only

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Erie County, NY King County, WA

Crash Rate per Million Miles Driven

SHRP 2 Overall

SHRP 2 Overall Age-Adjusted

SHRP 2 PR

SHRP 2 PR Age-Adjusted

Self-Driving Car 25 20 15 10 5 0 Level 1

Level 2 Crash Severity

Level 3

Crash Rate per Million Miles Driven

SHRP 2 Overall

SHRP 2 Age-Adjusted

SHRP 2 PR

SHRP 2 PR Age-Adjusted

10 9 8 7 6 5 4 3 2 1 0 ≤25

26-35

36-45 46-55 Speed Zone in mph

56-65

>65

Crash Rate per Million Miles Driven

SHRP 2 Overall SHRP 2 PR

SHRP 2 Age-Adjusted SHRP 2 PR Age-Adjusted

10 9 8 7 6 5 4 3 2 1 0

≤25

26-35

36-45 46-55 Speed Zone in mph

Crash Rate per Million Miles Driven

SHRP 2 Overall

56-65

>65

SHRP 2 Age-Adjusted

100 90 80 70

60 50 40 30 20 10 0 ≤25

26-35

36-45 46-55 Speed Zone in mph

56-65

>65

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SHRP 2 Overall

SHRP 2 Age-Adjusted

SHRP 2 PR

SHRP 2 PR Age-Adjusted

Urban

Locality

Business/Industrial

Church Moderate Residential School Bypass/Divided Highway Open Residential Open Country

Interstate 0

2 4 6 8 Crash Rate per Million Miles Driven

10

SHRP 2 Overall

SHRP 2 Age-Adjusted

SHRP 2 PR

SHRP 2 PR Age-Adjusted

Urban Business/Industrial

Locality

Church

Moderate Residential School Bypass/Divided Highway Open Residential Open Country

Interstate 0

5 10 15 Crash Rate per Million Miles Driven

SHRP 2 Overall

20

SHRP 2 Age-Adjusted

Urban Business/Industrial

Locality

Church Moderate Residential School Bypass/Divided Highway Open Residential Open Country Interstate 0

20 40 60 80 Crash Rate per Million Miles Driven

100

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Level 1

Level 2

Level 3

LOS A1

Traffic Density

LOS A2 LOS B LOS C LOS D

LOS E LOS F

0

20

40 60 Percentage

80

100

Level 1

Level 2

Level 3

Maneuver Judgment

Safe and Legal

Unsafe but Legal

Safe but Illegal

Unsafe and Illegal

0

20

60 40 Percentage

80

100

Level 1

Level 2

Level 3

Fault

Subject Driver

Another Driver

Not Applicable

0

20

40 60 Percentage

80

100

Level 1

Level 2

Level 3

Other Vehicle Decelerating

Precipitaing Event

Other Vehicle Slowed/Stopped Other Vehicle Entering Intersection Subject Vehicle Decelerating Subject Vehicle Slowed/Stopped Subject Vehicle Entering Intersection Subject Vehicle Lost Control Subject Over Edge of Road Other 0

20

40 60 Percentage

80

100

Level 1

Level 2

Level 3

Driver Behavior

Distracted Exceeded Safe Speed Exceeded Speed Limit Fatigue Other

None 0

20

40 60 Percentage

80

100

Level 1

Level 2

Level 3

Driver Impairment

None

Fatigue

Substance

Emotional State

0

20

40 60 Percentage

80

100

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Crash Rate per Million Miles Driven

25

20

15

10

5

0 SHRP 2 Overall

SHRP 2 Age-Adjusted

Self-Driving Cars









mph mph

𝑅 ∑𝑛𝑖=1 𝐴𝑖 𝑅= 𝑛 ∑𝑖=1 𝐷𝑖 ∑𝑛𝑖=1 𝐴𝑖

𝐴

∑𝑛𝑖=1 𝐷𝑖

1000 900

Sample Size

800

744

700 600

541

500 400 300 200

280

263 165

165 145 150 129 117 149

210

174

155 58

100 0

Age-Group

8

2

1400

1285

Sample Size

1200 1000 800

679 574

600

486

431

400 200 0 16-24

25-39

40-54 Age-Group

55-74

75+

100

90 80

Percentage

70 60 50 37

40

28

26

30 20

12

27 20

17

14

12

7

10 0 16-24

25-39

40-54 Age-Group

SHRP 2 Participants

55-75

75+

U.S. Licensed Drivers

jth

𝑊𝑗

𝑊𝑗 = 𝑃𝑗

jth th

j

𝑃𝑗 𝑆𝑗 𝑆𝑗

Age Group

𝑅𝐴𝐷 𝑅𝐴𝐷 =

∑𝐿𝑗 𝑊𝑗 𝐴𝑗 ∑𝐿𝑗 𝑊𝑗 𝐷𝑗

𝐴𝑗

𝐷𝑗

𝑅=

Age Group

120 = 𝟑. 𝟓𝟑 34.02

. 32 ∗ 69 + 1.53 ∗ 14 + 2.33 ∗ 7 + 1.35 ∗ 14 + .5 ∗ 14 = 85.71

. 32 ∗ 12.9 + 1.53 ∗ 6.4 + 2.33 ∗ 4.6 + 1.35 ∗ 6.3 + .5 ∗ 3.4 = 34.84

85.71 = 𝟐. 𝟒𝟔 34.84

. 12 ∗

1 = .000094 1281

1 1281 1 574 1 430 1 675 1 486

444.7 = .097 4552.13

. 097 ∗ 34.02 𝑚𝑖𝑙𝑙𝑖𝑜𝑛 = 3.3 𝑚𝑖𝑙𝑙𝑖𝑜𝑛

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