Functional Classification
The Highway Functional Classification System defines the role a roadway plays in the overall road network. Each roadway is classified in two ways. First by whether it is ‘urban’ or ‘rural’ as defined by Rhode Island’s Transportation Urban Rural Boundary map, and second by its function within the network.
RI to Waze FC conversion
We are utilizing the Federal Functional Classification system, because it matches up with other states.
Resource Links
- MassDOT Highway District Boundaries
- MassDOT Interactive Functional Classification Map
- massDOT Functional Classification Maps
RI DOT Class & Color Description
The Color/Classification Legend can be found on each of the Municipality FC maps provided by the state. The legend shows what classifications MassDOT uses and what color is assigned to each class.
Please refer to the GIS FC map found here, on the massDOT FC Maps webpage.
MassDOT to Waze conversion table
The numbers correspond to the Federal FC type indicated. (e.g. Federal Class 4 road is a Minor Arterial)
| Highway Systems | ||||||||
|---|---|---|---|---|---|---|---|---|
| Interstate | US Hwy (incl. some special routes) | US Hwy BUS, SPUR, LOOP | State Hwy (incl. some special routes) | State Hwy BUS, SPUR[a], LOOP | Locally-maintained | |||
| example>>>>> | I-95 N | US-2 | US-460 Business | SR-27 (SR-27A) | SR-400 Loop | Robertson St | ||
| F u n c t i o n a l C l a s s |
Interstate | Fw | n/a | n/a | n/a | n/a | n/a | |
| Other Freeways and Expys | n/a | Fw | Fw | Fw | Fw | Fw | ||
| Principal Arterial | n/a | Major | Major | Major | Major | Major | ||
| Minor Arterial | n/a | Major | Major | Minor | Minor | Minor | ||
| Major Collector | n/a | Major | Major | Minor | PS | PS | ||
| Minor Collector | n/a | Major | Major | Minor | PS | PS | ||
| Local | n/a | Major | Major | Minor | PS | Street | ||