Functional classification
Rural highways
Autoroutes, or limited access highways, such as the 20/40/55 or any *40 are considered freeways
The big exception to this rule is Autoroute 50 which is still a freeway, even though some small parts of it are not limited access and some are only two lane with no divider.
The official road map of Quebec should be consulted to determine the status of provincial routes. The map is available in French and English.
Major highways are shown in red on the official maps.
Minor highways are shown in orange on the official maps.
A very general rule of thumb is that 100-series highways are major while 200 and 300-series highways are minor. This is not completely accurate, however, so please consult the official map.