page_title: Acela
section_title: Building and development
hierarchical_section_title: Acela / History / Building and development
caption_attribution_description: English: An Acela Express trainset testing at TTCI in June 2000
context_page_description: The Acela is Amtrak's flagship high speed service along the Northeast Corridor in the Northeastern United States between Washington, D.C. and Boston via 16 intermediate stops, including Providence, Baltimore, Philadelphia, and New York City. The route contains segments of high-speed rail, and Acela trains are the fastest trainsets in the Americas; they attain 150 mph on 33.9 mi of the route.
  Acela 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 in FY 2016. Its 2016 revenue of US$585 million was 25% of Amtrak's total.
  Acela 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. 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.
context_section_description: On March 9, 1999, Amtrak unveiled its plan for a high-speed train, the Acela Express. Twenty new trains were to run on the Northeast Corridor. Several changes were made to the corridor to make it suitable for the Acela. The Northend Electrification Project extended existing electrification from New Haven to Boston to complete the overhead power supply along the 454-mile (731 km) route, and several grade crossings were improved or removed. Prior to 2000, all trains bound for Boston had to switch to diesel power at New Haven.
  In October 1994, Amtrak requested bids from train manufacturers for a trainset that could reach 150 miles per hour (240 km/h). A joint project of Bombardier (75%) and GEC Alsthom (now Alstom) (25%) was selected in March 1996. An inaugural VIP run of the Acela occurred on November 16, 2000, with the VIP train being led by power car number 2020 with no. 2009 at the opposite end, followed by the first revenue run on December 11, 2000, a few months after the intended date.
  By 2005, Amtrak's share of the common-carrier market between New York and Boston had reached 40%, from 18% pre-Acela. With the increasing popularity of the faster, modern Acela Express, Metroliner service was phased out in late 2006. To meet the demand, more Acela services were added in September 2005. By August 2008 crowding had become noticeable.
  By 2011, the Acela fleet had reached half of its designed service life. Amtrak proposed several replacement options, including one as part of its A Vision for High-Speed Rail in the Northeast Corridor. In 2011, Amtrak announced that forty new Acela coaches would be ordered in 2012 to increase capacity on existing trainsets. The existing trains would have received two more coaches, lengthening the trainsets from a 1-6-1 configuration to 1-8-1 (power car — passenger cars — power car). The longer trainsets would have required the modifications of the Acela maintenance facilities in Boston, New York and Washington. The first of the stretched trainsets was to have entered service in fiscal year 2014. This plan was cancelled in 2012 in favor of replacing, rather than refurbishing, the Acela fleet.
  In January 2014, Amtrak issued a request for proposals on 28 or more new model Acela trainsets, in a combined order with the California High-Speed Rail Authority. These bids were due May 17, 2014. After discussions with manufacturers, Amtrak and the California High Speed Rail Authority concluded their needs were too disparate for common rolling stock and decided not to pursue the joint option.
caption: Acela Express trainset undergoing testing at TTCI in 2000
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