U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
Definition: The measurement in degrees of the smallest angle between any two legs of the intersection. This value will always be within a range of 0 to 90 degrees (i.e., for non-zero angles, always measure the acute rather than the obtuse angle).
See Figure 7 for additional detail.
HPMS/Tool Requirements: HSM/IHSDM (Required)
Figure 7. Illustration of Intersecting Angle.