4th Edition Modified Elements
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C7. First Harmful Event


Definition:

The first injury or damage-producing event that characterizes the crash type.
Element Attributes:

Non-Collision:

Overturn/Rollover
Fire / Explosion
Immersion, Full or Partial
Jackknife
Cargo/Equipment Loss or Shift
Fell/Jumped from Motor Vehicle
Thrown or Falling Object
Other Non-Collision
Collision with Person, Motor Vehicle, or Non-Fixed Object:

Pedestrian
Pedalcycle
Other Non-motorist
Railway Vehicle (train, engine)
Animal (live)
Motor Vehicle in Transport
Parked Motor Vehicle
Struck by Falling, Shifting Cargo or Anything Set in Motion by Motor Vehicle
Work Zone/Maintenance Equipment
Other Non-Fixed Object
Collision With Fixed Object:

Impact Attenuator/Crash Cushion
Bridge Overhead Structure
Bridge Pier or Support
Bridge Rail
Cable Barrier
Culvert
Curb
Ditch
Embankment
Guardrail Face
Guardrail End
Concrete Traffic Barrier
Other Traffic Barrier
Tree (standing)
Utility Pole/Light Support
Traffic Sign Support
Traffic Signal Support
Fence
Mailbox
Other Post, Pole or Support
Other Fixed Object (wall, building, tunnel, etc.)
Unknown


Rationale:

Needed for uniformity in reported motor vehicle crash statistics, understanding crash causation, and identifying possible crash avoidance countermeasures. For analytic purposes it may be desirable to collect and use information about subsequent events, some of which may be harmful. (See Sequence of Events V20)