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For a line with a maximum speed of 60 km/h (37 mph), buffer-and-chain couplers increase the minimum radius to around 150 m (164 yd; 492 ft). As narrow-gauge railways , tramways , and rapid transit systems normally do not interchange with mainline railways, instances of these types of railway in Europe often use bufferless central couplers and ...
Reclosers were invented in the mid 1900s in the USA with the earliest reclosers introduced by Kyle Corporation in the early 1940s. [10] Reclosers were originally oil-filled hydraulic devices with rudimentary mechanical-protection-relaying capabilities. Modern automatic circuit reclosers are significantly more advanced than the original ...
At 250 km/h the tracks have a centre-to-centre distance of 4.5 m (15 ft) (while the first tracks in the 1980s were built with a distance of 4.7 m (15 ft)). The TGV track construction puts both rail tracks into a common concrete block, so they can disregard a safety margin for track displacement.
Jones was traveling fast in order to make up lost time, and could not stop in time to avoid a collision. He was able to slow his train from an estimated 75 mph (121 km/h) to an estimated 35 mph (56 km/h) at the time of collision; none of the passengers on Jones's train was seriously injured, and Jones was the only fatality. 1914
Route capacity is the maximum number of vehicles, people, or amount of freight than can travel a given route in a given amount of time, usually an hour. It may be limited by the worst bottleneck in the system, [ 1 ] such as a stretch of road with fewer lanes. [ 2 ]
A time–distance diagram is a chart with two axes: one for time, the other for location. The units on either axis depend on the type of project: time can be expressed in minutes (for overnight construction of railroad modification projects such as the installation of switches) or years (for large construction projects); the location can be (kilo)meters, or other distinct units (such as ...
Track gauge – The distance between the rails. Over time, rail may become too wide or too narrow. In North America and most of the world, standard gauge is 4 ft 8 + 1 ⁄ 2 in (1,435 mm). Rail profile – Looks for rail wear and deviations from standard profile.
In public transit, particularly bus, tram, or train transportation, a limited-stop (or sometimes referred to as semi-fast) service is a trip pattern that stops less frequently than a local service. Many limited-stop or semi-fast services are a combination of commuter rail and express train .