FHWA Functional Classification Guidelines

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Section	Links to electronic pages	Original Hard Copy Page #
I	Introduction	I-1
II	Concepts, Definitions, and System Characteristics	II-1
	The Concept of Functional Classification	II-1
	Area Definitions	II-5
	Functional System Characteristics	II-8
	Functional systems for rural areas	II-8
	Functional systems in urbanized areas	II-11
	Functional systems for small urban areas	II-14
	Special urban-rural identification	II-15
	Classification criteria for Alaska, Hawaii and Puerto Rico	II-15
III	Suggested Procedures for Rural, Small Urban Aarea and Urbanized Area Classification	III-1
	Introduction	III-1
	Classification Procedures for Rural Systems	III-3
	Identifying and ranking population centers and other travel generators	III-3
	Classification of rural systems	III-6
	Classification Procedures for Small Urban Areas	III-14
	Determine and map the urban area boundary	III-15
	Prepare road network map	III-15
	Identify and map land service characteristics	III-15
	Classify the highway and street network	III-15
	Classification Procedures for Urbanized Areas	III-18
	Determine and map the urbanized area boundary	III-18
	Map the road network	III-19
	Perform preliminary classification of the total arterial system	III-19
	Classify the final arterial system	III-28
	Classify the principal and minor arterial street systems	III-28
	Substratify the principal arterial system	III-32
	Classify collector and local streets	III-34
	Attachment 3 - Addendum

FHWA Functional Classification Guidelines

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