MBTA bus

Common card · No. 495959

The Massachusetts Bay Transportation Authority (MBTA) operates 150 bus routes in the Greater Boston area. The MBTA has a policy objective to provide transit service within walking distance – defined as 0.25 miles (0.40 km) – for all residents living in areas with population densities greater than 5,000 inhabitants per square mile (1,900/km2) within the MBTA's service district. Much of this service is provided by bus. In 2025, the system had a ridership of 95,156,800, or about 335,300 per weekday as of the second quarter of 2026. Most MBTA bus routes are local service operated in Boston and its inner suburbs and connect to MBTA subway stations. Fifteen high-ridership local routes are designated as key routes, with higher frequency at all operating hours. The MBTA operates a five-route bus rapid transit service branded as the Silver Line, as well as a limited-stop crosstown route. Three smaller local networks are based in the nearby cities of Lynn, Waltham, and Quincy. Several express routes...

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