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Train track map. In the mathematical subject of geometric group theory, a train track map is a continuous map f from a finite connected graph to itself which is a homotopy equivalence and which has particularly nice cancellation properties with respect to iterations. This map sends vertices to vertices and edges to nontrivial edge-paths with ...
Map. Rail transportation in the United States consists primarily of freight shipments along a well integrated network of standard gauge private freight railroads that also extend into Canada and Mexico. The United States has the largest rail transport network of any country in the world, about 160,000 miles (260,000 km).
Authorities in the United States maintain various definitions of high-speed rail. The United States Department of Transportation, an entity in the executive branch, defines it as rail service with top speeds ranging from 110 to 150 miles per hour (180 to 240 km/h) or higher, [10] while the United States Code, which is the official codification of Federal statutes, defines it as rail service ...
This listing includes current and discontinued routes operated by Amtrak since May 1, 1971. Some intercity trains were also operated after 1971 by the Alaska Railroad, Chicago, Rock Island and Pacific Railroad, Chicago South Shore and South Bend Railroad, Denver and Rio Grande Western Railroad, Georgia Railroad, Reading Company, and Southern Railway.
New Haven Line. The New Haven Line is a 72.7 mi (117.0 km) commuter rail line operated by the Metro-North Railroad in the U.S. states of New York and Connecticut. Running from New Haven, Connecticut, to New York City, the New Haven Line joins the Harlem Line in Mount Vernon, New York, and continues south to Grand Central Terminal in Manhattan.
CSX Transportation owns and operates a vast network of rail lines in the United States east of the Mississippi River.In addition to the major systems which merged to form CSX – the Baltimore and Ohio Railroad, Chesapeake and Ohio Railway, Louisville and Nashville Railroad, Atlantic Coast Line Railroad and Seaboard Air Line Railroad – it also owns major lines in the Northeastern United ...
A railway track (British English and UIC terminology) or railroad track (American English), also known as a train track or permanent way (often "perway" [1] in Australia or "P Way" in Britain [2]), is the structure on a railway or railroad consisting of the rails, fasteners, railroad ties (sleepers, British English) and ballast (or slab track ...
Route of California High-Speed Rail. The California High-Speed Rail system will be built in two major phases. Phase I, about 520 miles (840 km) long using high-speed rail through the Central Valley, will connect San Francisco to Los Angeles. In Phase 2, the route will be extended in the Central Valley north to Sacramento, and from east through ...
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