Functional Classification in a Nutshell
Communities in Motion 2040 Update to the Functional Classification Map
The functional classification map was updated in 2013 for Communities in Motion 2040. The COMPASS Board approved the 2040 functional classification map on January 28, 2013.
View the 2040 functional classification map here (includes arterial roadways and higher).
2035 Update to the Functional Classification Map
The functional classification map was modified in 2009 following a cooperative effort with Ada and Canyon agencies. The COMPASS Board approved the 2035 Functional Classification map on January 25, 2010. These modifications were based primarily on the following studies:
- The Ada County Highway District Transportation and Land Use Integration Plan
- The Ada County Highway District Southwest Boise Study
- The Canyon County Transportation Committee Mobility Study
Click here to view a copy of the arterial map. (2035 Functional Classification)
Click here to view a copy of the arterial and collector map.
(2035 Planning Functional Classification)
Click here to view a table showing all the changes (arterial and collector streets) in Ada County.
Click here to view a table showing all the changes (arterial and collector streets) in Canyon County.
The 2035 Functional Classification map was incorporated as part of the update to Communities in Motion, which was approved in September 2010. To view Communities in Motion 2035 please visit http://www.compassidaho.org/prodserv/cim2035.htm. Since collector changes are made more frequently, the collector system was not incorporated as part of a four-year plan document.
2030 Regional Planning Functional Classification Map
Note: Approved by COMPASS Board in August 2006
2015 Federal Functional Classification Map
2015 Federal Functional Classification Map (used for federal funding, 3.40MB)
- STC - urban collector or rural major collector
- SMA - urban or rural minor arterial
- STP - urban or rural principal arterial
- NHS - National Highway System principal arterial
- NHM - National Highway System minor arterial
- NHC - National Highway System collector
- FAI - Interstate