Rapid transit refers to high-capacity, high-frequency public transportation systems designed for faster travel through urban areas, including subways, light rail transit (LRT), and bus rapid transit (BRT). Rapid transit features fewer stops than local bus routes, dedicated rights-of-way separated from traffic, and stations rather than simple stops. Major Canadian rapid transit systems include Toronto's subway, Montreal's Metro, Vancouver's SkyTrain, Calgary's CTrain, and Ottawa's O-Train. Rapid transit requires massive capital investment but moves large numbers of people efficiently, reducing road congestion and supporting dense urban development. Cities continue expanding rapid transit networks as populations grow.