Hawaii Strategic Highway Safety Plan: AGGRESSIVE DRIVING

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Hawaii Strategic Highway Safety PlanAGGRESSIVE
DRIVING

• Dan Galanis
• Injury Prevention and Control Program
• Hawaii Department of Health
• 1250 Punchbowl St., Room 214
• Honolulu, HI 96813
• Ph 586-5943
• E-mail daniel.galanis_at_doh.hawaii.gov

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Overview of presentation

• Fatal traffic crashes (FARS data)
• Definitions
• Overall prevalence
• Trends, county comparisons
• Other factors
• Time, day of week, driver age
• Driver profiles
• Non-fatal traffic crashes (MVAR/DOT crash data)
• Definitions
• Overall prevalence
• Trends, county comparisons
• Other factors
• Driver profiles

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Fatal crashes

• Fatal crash/FARS data
• Traffic only, i.e. crashes on public roads
• Excludes crashes in parking lots, driveways,
  military facilities, gated sub-divisions, etc.
• Unintentional in nature
• Excludes suicides (1 crash), deaths of
  undetermined intent (7 crashes, 1 of total)
• Excludes 37 crashes (6) that did not involve a
  Hawaii resident fatality
• Definitions Aggressive driving 44 of crashes
  (250 of 574)
• Speeding (driving too fast for conditions or in
  excess of posted maximum) 237 crashes
• Most common criterion includes 95 of the
  crashes that were defined as aggressive
• Racing 6 crashes
• Following improperly, or improper/erratic lane
  changing 5 crashes
• Passing violations 16 crashes
• Reckless/erratic driving 4 crashes

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Fatal traffic crashes in Hawaii, 2001-2005
Proportion related to aggressive driving, by
type of crash
 
 
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Fatal traffic crashes in Hawaii, 2001-2005
Trends in the proportion related to aggressive
driving
 
 
indicates statistically significant trend
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Fatal traffic crashes in Hawaii, 2001-2005
Crashes related to aggressive driving by time of
day and day of week
 
 
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Fatal traffic crashes in Hawaii, 2001-2005
Prevalence of aggressive drivers, by age group
 
 
 
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Aggressive driving in Hawaii, 2001-2005

• Total impact
• 57 residents killed by in traffic crashes related
  to aggressive driving each year
• Crashes involving aggressive drivers are the 4th
  leading cause of death for 16 to 40 year-old
  residents
• 11.5 of the total of 1,719
• Cancer is 1st (14), suicide 2nd (13), heart
  disease 3rd (12)
• Crashes involving aggressive drivers are the 4th
  leading cause of fatal injuries for all ages
• 10 of the total of 2,915

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Characteristics of drivers involved in fatal
crashes in Hawaii, 2001-2005
  Aggressive drivers No aggressive driving
Age    
average 30.3 years 41.9 years
ages 15 to 29 years 59 228
Gender ( male) 89 74
     
Restraint use ( without seat belts) 48 16
No helmet (motorcycle/moped) 53 77
     
Licensing problem (none, expired, etc.) 14 8
     
Alcohol use 48 18
Drug positive 23 14
Impaired driver 61 26
     
Fatality rate 64 33
     
Weekend crash (Saturday-Sunday) 40 30
Nighttime crash (8 pm - 4 am) 60 41
indicates statistically significant
difference between aggressive drivers and other
drivers
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Non-fatal crashes

• Motor vehicle accident report (MVAR)
• Criteria
• Any crash resulting in injury, or gt3000
  cumulative property damage
• Traffic only, i.e. crashes on public roads
• Excludes crashes in parking lots, driveways,
  military facilities, gated sub-divisions, etc.
• Includes residents and non-residents, intentional
  and unintentional
• Definitions Aggressive driving
• Value for in Other factors field
• excessive speed 65 of aggressive drivers
• followed too close 31
• improper overtaking 4
• Search of Citation field for 291C-101/102/103/1
  04/105, speed, reckless, 291-2,
  291C-42/43/45/50
• Only 0.6 of aggressive drivers (53 citations)

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Non-fatal traffic crashes in Hawaii, 2001-2005
Proportion related to aggressive driving, by type
 
 
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Non-fatal traffic crashes in Hawaii, 2001-2005
Trends in the proportion related to aggressive
driving, by county
 
 
denotes statistically significant trend
over 5-year period
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Non-fatal traffic crashes in Hawaii, 2001-2005
Prevalence of aggressive driving, by age group
of drivers
 
 
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Characteristics of drivers involved in non-fatal
crashes in Hawaii, 2001-2005
  Aggressive drivers   Other drivers
Age    
average 31.9 years 39.0 years
ages 15 to 22 years 36 19
     
Gender ( male) 74 63
     
Restraint use ( without seat belts) 6 3
No helmet (motorcycle/moped) 61 71
     
Alcohol use 10 3
Drug positive 0.3 0.1
Impaired driver 10 3
     
Injured/possibly injured 36 31
     
Weekend crash (Saturday-Sunday) 31 27
Nighttime crash (8 pm - 5 am) 36 23  
indicates statistically significant
difference between aggressive drivers and other
drivers
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Data summary for aggressive driving

• How much?
• 44 fatal crashes related to aggressive
  driving 17 of non-fatal crashes related to
  aggressive driving
• Who? Younger drivers (15-17 years, 18-20
  years, etc.)
  More likely among male drivers
• Where? Generally comparable across counties for
  fatal crashes, but more prevalent for Neighbor
  Islands for non-fatal crashes
  Increasing trend for fatal crashes for
  state
• When? Nighttime crashes (8pm-5am) 53
  Weekend crashes
  (Sat/Sun) 52