C15. Contributing Circumstances, Road

Definition:

Apparent condition of the road which may have contributed to the crash.

Element Attributes:
Subfield 1: Road Circumstances 1

None
Backup Due to Prior Crash
Backup Due to Prior Non-Recurring Incident
Backup Due to Regular Congestion
Toll Booth/Plaza Related
Road Surface Condition (wet, icy, snow, slush, etc.)
Debris
Ruts, Holes, Bumps
Work Zone (construction/maintenance/utility)
Worn, Travel-Polished Surface
Obstruction in Roadway
Traffic Control Device Inoperative, Missing, or Obscured
Shoulder (none, low, soft, high)
Non-Highway Work
Other
Unknown

Subfield 2: Road Circumstances 2

See attributes in Subfield 1

Subfield 3: Road Circumstances 3

See attributes in Subfield 1

Rationale:

Important to determine highway maintenance and possible engineering needs.