Originally, various track gauges were used in the United States. Some railways, primarily in the northeast, used standard gauge of 4 ft 8+1⁄2 in; others used gauges ranging from 2 ft to 6 ft. As a gen
Dual-gauge track at the Nevada State Railroad Museum: standard and 3 ft (914 mm)
The Denver and Rio Grande Railway line with dual gauge track. The railway's success was initially attributed in part to the narrow gauge construction.
5 ft 6 in gauge railway
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5 ft 6 in, also known as the Indian gauge, is a broad track gauge, used on Indian, Pakistani, western Bangladeshi, Sri Lankan, Argentine and Chilean railway systems, and on the BART system in the San
Track gauge in the United States
…Portland gauge of 5 ft 6 in (1,676 mm) was used on the Grand Trunk Railway, Maine Central Railroad, and a system of connecting lines to funnel interior traffic through…
Janakpur, a modern Nepalese station on the Jaynagar–Bardibas railway line, interworking with India
Bay Area Rapid Transit tracks, laid to 5 ft 6 in (1,676 mm) with third rail electrification
Dual-gauge 5 ft 6 in (1,676 mm) and 1,000 mm (3 ft 3+3⁄8 in) track in Argentina