ADOT Transportation Planning Division

MPD - Multimodal Planning Home Page

ADOT Home Page :: Site Index

State/Regional Planning

Public Transportation

5 Year Construction Program

Traffic Data

Air Quality

Geographic Information Systems (Maps)

Research Center

Administration

ADOT Home Page

Functional Classification

The 1991 Intermodal Surface Transportation Act required each state to functionally reclassify its public roads and streets; ADOT was assigned to lead Arizona's effort. ADOT undertook the task of coordinating with federal, state and local jurisdictions in order to functionally classify Arizona's public roads and streets. Additional information about the Functional Classification process can be found in the following documents:

Process for Modifying Routes on Arizona's Functional Classification System (PDF format)
Arizona Functional Classification Guidelines (PDF format)
Worksheet for submitting a Reclassification Request (PDF format)
FHWA Guidelines
From the March 1989 FHWA report "Highway Functional Classification: Concepts, Criteria and Procedures"
Updated Functional Classification Maps Approved March 2005(PDF format)
Approved Urban Area boundary maps
"Smoothed" maps based on the 2000 Census

Check out our
Interactive Maps

Privacy Statement | Contact ADOT