Overview
Traffic signs serve an important function informing drivers of traffic regulations, warning about road characteristics or hazards and providing necessary information for route selection. The traffic sign catalogue classifies traffic signs respectively as: Regulatory, Warning, Guide or Information signs.
Traffic sign catalogue
The traffic sign catalogue contains the standard specifications and identification codes for traffic signs in Alberta. Signs in the traffic sign catalogue are grouped into 3 main classes of signs (Regulatory, Warning and Information) and further divided into several sub-classes.
Descriptions of each of the traffic sign classes and a link to the traffic sign catalogue for each class of sign is provided below. The sign catalogue is being reformatted starting in 2025 to include both a detailed specification sheet and a true scale drawing (without annotations) for all fixed message signs or signs with graphical elements. All typeface is specified in a ClearviewHWY font series (including positive and negative contrast) unless otherwise indicated.
Regulatory signs (Class R)
Regulatory signs indicate traffic regulations that apply at specific times or places on roads.
| Sign Class (click image to view) | Description |
|---|---|
RA 
| Right-of-way control signs indicate the right-of-way for drivers on the approaches to an intersection, or for pedestrians at a crosswalk. |
RB 
| Road use control signs indicate the permitted or prohibited use of a road. |
RC 
| Miscellaneous regulatory signs indicate regulations that are not otherwise provided for in Class R. |
Warning signs (Class W)
Warning signs provide an advance indication of conditions on or adjacent to a road that are potentially hazardous to drivers.
| Sign Class (click image to view) | Description |
|---|---|
WA 
| Physical conditions signs indicate features or conditions of the road itself. |
WB 
| Traffic regulations ahead signs provide an advance warning of a traffic regulation on a road. |
WC 
| Intermittent or moving hazard signs indicate the possibility of a situation that may require a driver response. |
WD 
| Used to regulate, warn and guide drivers in work zones where construction, maintenance or utility activities or other temporary or unusual conditions are on or adjacent to the road. |
Guide and information signs (Class I)
Guide and information signs indicate information for route selection, locating off-road facilities or identifying geographical features or points of interest.
| Sign Class (click image to view) | Description |
|---|---|
IA 
| Destination guide signs provide directions and distances to destinations. |
IB 
| Route identification signs indicate numbers, names or other roadway designations. |
IC 
| Off-road services signs indicate the availability of, and direction to, emergency, transportation, traveller and tourist services. |
ID 
| Miscellaneous information signs provide navigation and other information that is not otherwise provided for in Class I. |
IF 
| Freeway guide signs provide directions and guidance to exit ramps and destinations along freeways and at interchanges. |
IX 
| Arrows and symbols are used on various traffic signs. |
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Contact
Connect with Transportation and Economic Corridors about the Traffic Sign Catalogue:
Email: [email protected]