Along this section, Acela has captured a 54% share of the combined train and air market.

On the 231-mile (372 km) section from Boston's South Station to New York's Penn Station, the fastest scheduled time is 3 hours and 30 minutes, or an average speed of 66 miles per hour (106 km/h). The Acela 's speed is limited by traffic and infrastructure on the route's northern half. Over this route, Acela and the Northeast Regional service captured a 75% share of air/train commuters between New York and Washington in 2011, up from 37% in 2000.

The high-speed operation occurs mostly along the 226-mile (364 km) route from Pennsylvania Station in New York City to Union Station in Washington, D.C., with a fastest scheduled time of 2 hours and 45 minutes and an average speed of 82 miles per hour (132 km/h), including time spent at intermediate stops. Acela trains use active tilting technology, which helps control lateral centrifugal force, allowing the train to travel at higher speeds on the sharply curved NEC without disturbing passengers. Īcela operates along routes that are used by freight and slower regional passenger traffic, and reaches the maximum allowed speed of the tracks only along some sections, with the fastest peak speed along segments between Mansfield, Massachusetts, and Richmond, Rhode Island, and New Brunswick and South Brunswick, New Jersey. Its 2016 revenue of $585 million was 25% of Amtrak's total. Īcela carried more than 3.4 million passengers in fiscal year 2016 second only to the slower and less expensive Northeast Regional, which had over 8 million passengers. Acela trains are the fastest in the Americas, reaching 150 miles per hour (240 km/h) (qualifying as high-speed rail), but only over 49.9 miles (80.3 km) of the 457-mile (735 km) route. and Boston via 13 intermediate stops, including Baltimore, New York City and Philadelphia. The Acela ( / ə ˈ s ɛ l ə/ ə- SEL-ə originally the Acela Express until September 2019) is Amtrak's flagship passenger train service along the Northeast Corridor (NEC) in the Northeastern United States between Washington, D.C. Map of the areas and stations served by Acela ( interactive map)

Northeast corridor train schedule