Sorry the lanes of the 401 are more like this ;
Far right lane is for people scared to be on the 401 in the first place, and do 80km/h. Or for ****** off truck drivers that dont want to let people merge onto the highway.
Middle lane is for truck drivers with no traffic around them at all, to do 105 in and see all the ****** off drivers passing them on left and right sides. It is also for weenies who want to do 100 km/h in the middle lane and just cruise there all day. Or for truck drivers to jam up on your ***, so they cant attempt a 10 minute pass on another truck.
Far left lane is either "GET the **** out of my way lane" or " ill just cruise here at 115 km/h and wonder why your flashing your lights at me for the last 10 kms"
The Theory:
Right Lane - driving straight at a given speed
Centre Lane - cars and trucks passing vehicles in the right lane
Left Lane - vehicles going fast enough to pass vehicles in the centre lane
The Reality:
Right Lane - fast moving traffic
Centre Lane - trucks bogging down all surrounding traffic
Left Lane - drivers who are texting or making phone calls, who can't be bothered to watch out for other traffic, and figure everyone else should go around them
All Lanes, Including On-Ramps - drivers who are trying to do 140 Kmh by weaving, cutting off others, and generally being turds
The Practical Solution, Where traffic Density is High:
Right Lane - for use by traffic getting on and off the highway, and vehicles moving out of the centre lane for faster traffic
Centre Lane - for driving straight at a given speed, except when yielding to fast moving trucks coming up behind
Left Lane - Passing lane