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The chain (abbreviated ch) is a unit of length equal to 66 feet (22 yards), used in both the US customary and Imperial unit systems. It is subdivided into 100 links . [ 1 ] [ 2 ] There are 10 chains in a furlong , and 80 chains in one statute mile . [ 2 ]
A Gunter's chain showing the individual links. The link (usually abbreviated as "l.", "li." or "lnk."), sometimes called a Gunter’s link, is a unit of length formerly used in many English-speaking countries. In US customary units modern definition, the link is exactly 66 ⁄ 100 of a US survey foot, [1] or exactly 7.92 inches or 20.1168 cm.
Had passenger and freight lines, see Rail transport in Jordan: 400 Kiribati: Had industrial lines 296 Lebanon: Had from 1890 until 1970 (future projects to build a railway from Tyr to Tripoli) 422 Libya: 1912 to 1965 (peak length of 399 km [15]); (network under construction in 2008–2011, but works stopped, see Libyan Railways) 434 Malta
The route length of a transport network is the sum of the lengths of all routes in the network, [5] such as railways, road sections or air sectors.The U.S. Department of Transportation's Federal Transit Administration has also referred to this as "Directional Route Miles (DRM)". [6]
High Speed 1 (HS1), legally the Channel Tunnel Rail Link (CTRL), is a 109.9-kilometre (68.3-mile) high-speed railway linking London with the Channel Tunnel.. It is part of the line carrying international passenger traffic between the United Kingdom and mainland Europe; it also carries domestic passenger traffic to and from stations in Kent and east London, and continental European loading ...
An improvement on the loose-coupled train is the "Instanter" coupling, in which the middle link of a three-link chain is specially triangular shaped, so that when lying "prone" it provides enough slack to make coupling possible, but when the middle link is rotated 90 degrees, the length of the chain is effectively shortened, reducing the amount ...