Ambassador (B&O train) Ambassador (B&O train) The Ambassador was a named train of the Baltimore and Ohio Railroad (B&O) on its route between Baltimore, Maryland and Detroit, Michigan with major station stops in Washington, D.C. and Pittsburgh, Pennsylvania and Toledo, Ohio. Inaugurated in 1930, the "Ambassador" was discontinued in 1964. The B&O began passenger service from Detroit to Washington, D.C. in 1920. Until 1925, the B&O offered a through Washington - Detroit Pullman sleeping car running on a Washington-Chicago train to Deshler, Ohio then added to a Cincinnati - Detroit train. In June 1925, the B&O started a through overnight Washington - Detroit
Reading–Taunton line to Taunton line entirely. A few services from London travel only part way along the line, terminating at Westbury or Frome. GWR also provide local services along parts of the line, between Reading and Bedwyn, and between Westbury and Castle Cary. The route is double-track throughout, with passing loops at certain locations. The highest line-speed on the route is . The route has a loading gauge clearance of W7 except Reading to Westbury and Taunton to Exeter, which are the larger W8, and is open to rolling stock up to Route Availability 8. Signalling requires four minutes between trains on