4th Edition Modified Elements
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V16. Roadway Alignment and Grade


Definition:

The geometric or layout and inclination characteristics of the roadway in the direction of travel for this vehicle.
Element Attributes:

Subfield 1: Horizontal Alignment:

Straight
Curve Left
Curve Right
Subfield 2: Grade:

Level
Hillcrest
Uphill
Downhill
Sag (bottom)


Rationale:

Important to document the horizontal alignment and grade of the roadway as it relates to this specific vehicle involved in the crash for the purpose of evaluating vehicles that run-off-road, rollover, or are runaways.