Functional Classification Revisions Process

Map WorkAfter each U.S. Census, the Ohio Department of Transportation (ODOT) coordinates with NOACA to update the functional classification of roadways to reflect changes in urban areas and traffic patterns.

Detailed information on the functional classification system is available on the ODOT website. The Federal Highway Administration (FHWA), has also produced the Highway Functional Classification concepts, Criteria and Procedures, 2013 edition, which is an excellent reference document providing definitions and concepts concerning functional classification.

How functional classification is used as a management tool in transportation planning:

  • It is one measure of a route’s transportation importance and efficiency in project selection and program management.
  • It helps determine maintenance allocations and data collection needs.
  • It helps set design criteria for various roadway features such as lane and shoulder widths, horizontal and vertical clearances and design speeds. It identifies roads, streets and highways that are eligible for federal funds.

Federal Aid Eligibility

To qualify for federal funds, a facility must be classified higher than a local road in urban areas and higher than a local road or minor collector in rural areas. (Some rural minor collectors have limited eligibility for federal aid.)

Functional Classification Maps

To view a map showing the current functional classification system in NOACA’s planning area go to NOACA’s GIS Portal.

Functional Classification Updates

The functional classification system can be amended at any time. Within a MPO’s planning area, ODOT requests that all functional classification change requests be coordinated with the MPO.

In July 2014 the NOACA Board of Directors approved Resolution 2014-025 which authorizes NOACA to  complete a comprehensive review of the federal-aid system using the new functional classification review policy. The Functional Classification Policy and Procedures will be used to review all current and future functional classification modification requests. The first step in this process is to complete a NOACA Functional Classification Revision Form. NOACA staff will then review the submitted materials with respect to:

  • Lane widths
  • Shoulder widths
  • Average daily traffic (ADT)
  • Access
  • Speed limit
  • Parallel spacing of federal-aid routes
  • Area type analysis
  • Percentage of mileage by functional classification category, by NOACA region and individual county
  • Functional classification density analysis

Staff will then make a recommendation to the appropriate NOACA committees, and ultimately a decision by the NOACA Board of Directors will be made on the proposed functional classification revision. Then the request will be forwarded to ODOT for review and recommendation, ODOT will forward their recommendation to the Federal Highway Administration (FHWA) for final action.

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Last updated: 3/30/2017 12:31:29 PM