V20. Sequence of Events

Definition:

The events in sequence related to this motor vehicle, including both non-collision as well as collision events. For examples, refer to Appendix L.

Element Attributes:

 

First Event Non-Collision

Overturn/Rollover
Fire / Explosion
Immersion, Full or Partial
Jackknife
Cargo/Equipment Loss or Shift
Equipment Failure (blown tire, brake failure, etc.)
Separation of Units
Ran Off Roadway Right
Ran Off Roadway Left
Cross Median
Cross Centerline
Downhill Runaway
Fell/Jumped From Motor Vehicle
Reentering Roadway
Thrown or Falling Object
Other Non-Collision

First Event 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

First Event 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
Other Post, Pole, or Support
Fence
Mailbox
Other Fixed Object (wall, building, tunnel, etc.)
Unknown

Second Event

See attributes in First Event

Third Event

See attributes in First Event

Fourth Event

See attributes in First Event

 

Rationale:

Important for use in conjunction with most harmful event and motor vehicle maneuver to generate complete information about the crash.