Driver distraction and inattention in NZ crash analysis system

Report
Dr Craig Gordon
Alcohol Advisory Council of NZ (formerly Ministry of Transport)
[email protected]
Presentation at AA Research Foundation Research Symposium, 5-6th September, 2011
Wellington, NZ
Outline
 The ‘attention diverted by’ series
 MoT project
 What was done
 Summary of findings
 Acknowledgments – Stephen Evans, Ministry of Transport
Gordon, C. (2009). Reviewing how distraction involvement is coded in the New
Zealand crash analysis system. In proceedings of the 4th IRTAD International
Traffic Safety Data and Analysis Group conference, Seoul, Korea, 16-17th
September.
‘Attention diverted by’ series
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Passengers
Scenery or persons outside the vehicle
Other traffic
Animal or insects in vehicle
Trying to find intersection/house number, destination
Advertising or signs
Emotionally upset / road rage
Cigarette, radio, heater, air conditioning, glove box, object under
drivers feet/pedals etc
Cell phone
Navigation devices
CB radio / non-cell comms device
Driver dazzled (or sunstrike)
Other unspecified
Involvement in CAS
% crash involvement ‘attention diverted by’ out of all police-reported crashes
Fatal crashes
14%
12%
10%
8%
6%
4%
2%
0%
Injury crashes
MoT Project
Content review of ‘attention diverted by’ series
 Purpose: to find out what the series contained
 7,261 police reported crashes between 2000-2006
 Coded as much detail as possible
 Revised category scheme
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6 summary level filters
32 source filters
Involvement in ‘Attention diverted by’ series
(2000-2006, main source driver categories and non-drivers)
Pedestrians/Cyclists
Driver state (mainly emotional upset)
Driver unspecified inattention
Driver unspecified distraction
Driver secondary task activity (nondriving related)
Driver driving-related activity
Driver internal thought
0%
10%
20%
30%
40%
50%
60%
Focus on secondary task activity
Proportion out of secondary task activity
Passengers
Telecommunications
Entertainment
Internal activity/personal effects
Eating/drinking
Smoking
Pets/insects
Climate/vehicle controls
Internal other
Scenery
Directions
Vehicles
Police
People
External other
0%
5%
10%
15%
20%
25%
Focus on driving-related activity
Proportion out of driving-related activity
Sunstrike or reacting to sunstrike
Looking at traffic/vehicles
Checking for traffic
Using mirrors
Headlights or reacting to headlights
Vehicle-related controls
People/pedestrians
Other driving-related
0%
10%
20%
30%
40%
50%
Additional information:
http://www.transport.govt.nz/research/divertedattention/
Types of fatal or serious crashes where the driver's attention was
diverted (annual average 2006 - 2008)
Overtaking or lane change
Head on
Lost control / off road
Collision with obstruction or rear end
Open road
Intersection or turning
Drivers in fatal or serious crashes involving diverted attention
by age group (annual average 2006 - 2008)
Urban
Pedestrian
10
20
30
40
Annual average crashes
50
60
Number of drivers
0
10%
45
Diverted attention involved
9%
40
% age group
8%
35
7%
30
6%
25
5%
20
4%
15
3%
10
2%
5
1%
0
0%
Age groups
Proportion of age group
50
Other
Summary Comments
‘Attention diverted by’ series
 Contains
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Secondary task activity (non-driving)
Internal thought
Driving-related activity
Emotional state
Not all drivers – pedestrians/cyclists as well
 Involved in approximately 10-12% of crashes

With approximately ½ being secondary task activity

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