Field Investigation Form
Location: _________________________________________________________
Completed by: _____________________________________________________     Date: _______________
Area Type:
_____  Urban CBD
_____  Urban Other
_____  Suburban
_____  Rural
Roadway Functional Class:
_____  Local
_____  Collector
_____  Minor Arterial
_____  Major Arterial
Motor Vehicle Speed*:
_____  <= 45 mph
_____  > 45 mph
Location:
_____  Intersection
_____  Mid-Block
Number of Through Lanes:
_____  <= 2 lanes
_____  3 - 4 lanes
_____  >= 5 lanes
Traffic Volumes (Average Daily Traffic):
_____  < 10,000
_____  10,000 to 25,000
_____  > 25,000
Signalization:
_____  Traffic signal present (removal is NOT an option
_____  Traffic signal present (removal is an option)
_____  No signal present (installation is NOT an option)
_____  No signal present (installation is an option)
Comments:
			
Notes:
* Use 85th percentile speed if available. If not available, add 9 mi/h to the posted speed limit as a surrogate 
measure for the 85th percentile speed. Prior research has shown that 85th percentile speeds for vehicle traveling on 
many urban and suburban streets (including arterial, collector, and local classifications) generally exceed the posted 
limit by 6 to 14 mi/h. (D.L. Harkey, H.D. Robertson, and S.E. Davis, "Assessment of Current Speed Zoning Criteria," 
Transportation Research Record 1281, Transportation Research Board, Washington, DC 1990.)
   

U.S. Department of Transportation Federal Highway Administration