Rt stands for Rapid Transit. Some say that certain things are not for 1 reason or another. Below, I list the various cities, and the various "RT" that exists. I will also say why it is RT.
Vancouver
Skytrain - It is RT because it is grade separated and it moves at faster overall speeds than traffic.
Nelson BC
Nelson Electric Tramway - RT. Although it is less than 2km long.
Calgary
CTrain - RT. It is grade separated. Traffic must yield to the train.
Edmonton
Edmonton LRT - RT, it is grade separated. Traffic must yield to the train.
Whitehorse
Whitehorse Waterfront Trolley - RT, it is 2km.
Winnipeg
Winnipeg RT - RT, it uses lanes that are reserved for buses. Even though buses come in and out, while on it, they are RT
York Region
Viva RT - Parts are RT. They are working on converting the entire system to RT.
Brampton
Zum - sort of RT It uses stops that are spaced further apart.
Waterloo
Ion - RT, Regular vehicular traffic will not ride on the line.
Mississauga
Transitway - RT, Same as all the others.
Toronto
Subways - Yes
SRT - Yes
Streetcars (route numbered 5xx)
03, 05, 06, 11 - Not RT
01, 02, 04, - Parts are RT, parts run on grade separated ROW
09, 10, 12 - RT, All run on Grade separated ROW
Crosstown - RT, it will be grade separated.
Ottawa
O-Train - RT. Both the Trillium Confederation lines are grade separated.
Transitway - RT, Even though buses come in and out, while on it, they are RT
Gatineau
Rapidbus - RT, Runs in it's own ROW.
Montreal
Metro - Yes
Halifax
MetroLink - Sort off RT. Does not run on its own ROW, but stops are spaced out quite far.
MetroExpress - Same as MetroLink.
Durham Region
DRT Pulse - Sort of. It has less stops than normal buses.
Saskatoon
DART - Sort of. Same as above.
Of the Top 15 CMAs in terms of population, only London, Hamilton, Quebec City and St Catherines area do not have any sort of RT.
https://en.wikipedia.org/wiki/List_of_census_metropolitan_areas_and_agglomerations_in_Canada
London, Quebec City and Hamilton have plans for BRT/LRT.
15
Victoria - Talks but nothing.
Highway 1 LRT and the E&N Railway are proposed.
16
Windsor - Nothing yet
18
Regina - Nothing so far
19
Sherbrooke - Nothing so far
20
St John's Newfoundland - Nothing so far
Of the top 10, Quebec City is the only city not actually building one, yet.
Have I missed any?
Thoughts?