Difference between revisions of "National resources/Functional classification"

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| [http://transportation.ky.gov/Planning/Pages/Functional-Classification.aspx Kentucky Transportation Cabinet]
 
| [http://transportation.ky.gov/Planning/Pages/Functional-Classification.aspx Kentucky Transportation Cabinet]
 
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Revision as of 22:15, 25 June 2014

Functional classification is a system by which roads are classified using a set of criteria selected by the Federal Highway Administration (FHWA). These criteria include not only the physical attributes of the road but also efficiency of travel, number of access points, speed limits, route spacing, actual usage, and continuity. This can lead to quite different classifications for roads that appear similar. For example, a six-lane divided road in an urbanized area may be a Collector (Primary Street); a two-lane road through the middle of a town may be a principal arterial (Major Highway).

In Waze, functional classification is used to determine road type in the United States.

Functional classification is a national standard, but functional classification maps are published by state departments of transportation. Links to functional classification maps for each state can be found in the table below.

Reason for changes

The Waze forum holds a lengthy discussion on why the Functional Classification changes are being made.

Functional classification maps by state

State Interactive map Static maps Notes
Alabama ALDOT
Alaska Alaska DOT
Arizona ADOT
Arkansas Arkansas.gov
California Caltrans Earth Caltrans
Colorado CDOT MapView
Connecticut Connecticut DOT
Delaware DelDOT
District of Columbia DDOT
Florida FDOT I-Map See Wiki Interactive available 6am-9pm M-F, 7am-7pm Sat, unavailable Sun (Eastern time). 
Georgia Atlanta Metro (proposed) Statewide FC maps under review by DOT; not available online until Sep 2014(?). See forum for details.
Hawaii Hawaii DOT
Idaho Idaho Transportation Department
Illinois Getting Around Illinois Illinois DOT
Indiana INDOT
Iowa IowaDOT
Kansas KDOT
Kentucky Active Highway Plan (see Legend for FC) Kentucky Transportation Cabinet
Louisiana LaDOTD Interactive Online Map LaDOTD
Maine MaineDOT
Maryland MD SHA via nzahn1 MD SHA Interactive Maps transformed from MD SHA data to Google Earth(.kml) by nzahn1
Massachusetts massDOT
Michigan MDOT PR Finder MDOT
Minnesota MnDOT
Mississippi MDOT
Missouri MoDOT
Montana MDT
Nebraska Nebraska Department of Roads
Nevada Nevada DOT
New Hampshire New Hampshire DOT
New Jersey NJDOT
New Mexico NMDOT
New York NY State DOT
North Carolina NCDOT
North Dakota NDDOT
Ohio Ohio DOT
Oklahoma ODOT
Oregon ODOT TransGIS ODOT
Pennsylvania PennDOT
Rhode Island RI Division of Planning
South Carolina SCDOT GIS/Mapping
South Dakota SDDOT
Tennessee TDOT
Texas TxDOT Statewide Planning Map
Utah UDOT
Vermont VTrans
Virginia VDOT
Washington WSDOT
West Virginia WV DOT
Wisconsin WisDOT
Wyoming Not found