4th Edition Modified Elements
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V17. Traffic Control Device Type


Definition:

The type of traffic control device (TCD) applicable to this motor vehicle at the crash location.
Element Attributes:

Subfield 1: Type TCD

No Controls
Person (including flagger, law enforcement, crossing guard, etc.)
Traffic Control Signal
Flashing Traffic Control Signal
School Zone Sign/Device
Stop Sign
Yield Sign
Warning Sign
Railway Crossing Device
Other
Unknown
Subfield 2: Inoperative/Missing?

Yes
No
Unknown


Rationale:

This element needs to be collected at the scene because the presence of specific devices is better verified at the time of the crash. It is also important for ascertaining the relationship between the use of various traffic control devices (TCD) and crashes and identifying the need for upgraded TCDs at specific crash locations.