Rapid transit refers to a high-capacity public transportation system designed to move large numbers of passengers quickly and efficiently within urban areas. This system typically includes trains, subways, or light rail that operate on dedicated tracks, allowing for faster travel times compared to regular buses or cars. These systems are often characterized by frequent service, limited stops, and the ability to bypass traffic congestion. Cities like New York City and Tokyo have extensive rapid transit networks that help reduce road traffic and promote sustainable urban mobility, making it easier for residents to commute and access various parts of the city.