国会特快号列车

国会特快（英文：Capitol Limited）是美铁公司运行于华盛顿与芝加哥之间的两列客车之一，运行距离为，途经匹兹堡与克里夫兰。(另一列车则为行经辛辛那提与印第安纳波利斯的红雀号）。本列车由1981年开始营运，其名称乃来自巴尔的摩与俄亥俄铁路公司的国会特快－－其于1971年美铁公司成立时停驶。本列车于美铁公司的车次编号为29次与30次车，其编号乃承继已经停驶的国家特快（National Limited）。
于2011年度国会特快载客量超过225,000人，较前一年增加了3.5%，而总收入则为20,312,544美元，较2010年度增加了 9.3%。
自2024年11月起，国会特快号列车与银星号列车短暂合并为。
On November 12, 1990, trains were rerouted west of Alliance, Ohio, due to Conrail's desire to abandon part of the former PFW&C in northwestern Indiana; the "Capitol Limited" now uses the former Pennsylvania Railroad Cleveland and Pittsburgh (C&P) line north from Alliance through Hudson, Ohio, to Cleveland route. The "Broadway Limited" and its successor, the "Three Rivers", were re-routed over the B&O's Chicago-Pittsburgh route. In October 1994, Amtrak, with great fanfare, relaunched the "Capitol Limited" with a new bilevel Superliner II consist.
On February 16, 1996, an eastbound rush-hour MARC commuter train headed to Washington Union Station collided with the westbound "Capitol Limited" near Georgetown Junction on a snow-covered stretch of track just west of Silver Spring, Maryland. Eleven people died aboard the MARC train in the accident. Three died of injuries suffered in the impact; the rest were killed by smoke and flames. The MARC engineer and two conductors were among the dead.
Through cars.
Between 1984 and 1986 and again from 1991 to 1993, the "Capitol Limited" exchanged a Chicago-Miami coach with the New York-Miami "Silver Star" at Washington, D.C.
During 1997 and part of 1998, Amtrak operated the "Capitol Limited" in conjunction with the "Southwest Chief", a daily Los Angeles–Chicago service. The two trains used the same Superliner equipment sets, and passengers traveling on both trains could remain aboard during the layover in Chicago. Originally announced in 1996, Amtrak planned to call this through service the ""National Chief"" with its own numbers (15/16), although the name and numbers were never used. Amtrak dropped the practice with the May 1998 timetable.
This route was mentioned amongst five others in the July 2010 issue of "Trains" magazine as slated for performance improvement, and as part of its federally mandated analysis of the worst-performing long-distance routes, Amtrak determined that reinstating a through-car connection with the "Pennsylvanian" would result in the highest gain in monetary and customer service measurements of possible options. To implement this, Amtrak plans to operate a Viewliner sleeper car, an Amfleet cafe car and two Amfleet coaches between Chicago and New York via the "Capitol Limited" and "Pennsylvanian" beginning sometime in 2011. "Trains" magazine picked up on this in their January 2011 issue, citing that a switch would be re-installed to give the thru-cars access to parallel track. Also cited was the consist switch that would take place (shuffling sleeper and coach positions so that the transition sleeper was in the rear), an eight-hour layover on Sundays due to the "Pennsylvanian"'s 1:20p departure (since eliminated), and the lack of Viewliner sleepers to accommodate the service (also cited are that the new ones would not roll out until 2012 at the very earliest).
路线.
从华盛顿到匹兹堡之间的路线，大致上是沿著历史悠久的巴尔的摩与俄亥俄铁路公司的路线，在河谷与陡坡之间前行，途经波多马克河上游、 雅各根尼河（Youghiogeny River）、以及门嫩各希拉河（Monongahela River）。从俄亥俄开始路线变得平直。 
国会特快行经美铁、CSX运输公司、诺福克南方铁路的下列路段：
停靠站：
列车车辆编组.
列车编成举例（2009年6月28日）
2010年3月美铁有一份文件定义了国会特快的标准编成包括一辆行李车、一辆合造工作人员用车、两辆卧车、一辆餐车、一辆观景瞭望车、一辆行李客车合造车、两辆客车。