track clearance

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• Track and Field Sports — ▪ 2007 Introduction World Indoor Championships.       At the International Association of Athletics Federations (IAAF) world indoor championships, held in Moscow on March 10–12, 2006, Russia and the U.S. divided up a majority share of the gold… …   Universalium

• clearance — A certificate which evidences the right of the vessel to depart the port on a voyage, operating as a permission to sail; the act of departing from a port. 48 Am J1st Ship § 19; the space permitted by the physical circumstances for a movement, as… …   Ballentine's law dictionary

• Gauntlet track — or interlaced track (also gantlet track) is where railway tracks converge onto a single roadbed and are interlaced to pass through a narrow passage such as a cutting, bridge, or tunnel. A frog at each end allows the two tracks to overlap, and the …   Wikipedia

• Double track — This article is about the use of two tracks on a railway line. For the sound recording technique, see doubletracking. A double track railway line A double track railway usually involves running one track in each direction, compared to a single… …   Wikipedia

• Australian Rail Track Corporation — is a federal government owned corporation established in 1997 that owns, leases, maintains and controls the majority of main line standard gauge railway lines on the mainland of Australia, known as the Defined Interstate Rail Network… …   Wikipedia

• Birdsville Track — Infobox Outback Track Name = Birdsville Track From = (coord|29|38|S|138|03|E|region:AU SA type:city) To = (coord|25|53|S|139|21|E|type:city(326) region:AU QLD) Length = 517 km State = Queensland, South Australia Region = Strzelecki Desert, Tirari …   Wikipedia

• Toronto Track and Field Centre — The Toronto Track and Field Centre is a city owned athletic training centre in Toronto, Canada. It is located at York University s Keele campus in the north west section of the city. Contents 1 Description 2 See also 3 References …   Wikipedia

• Metro Toronto Track and Field Centre — is a city owned track training centre located at York University s Keele campus and is not part of York University. Opened in 1978, the facility is run by Toronto Parks department and used by both professional and amateur athletes.The centre… …   Wikipedia

• Copyright Clearance Center — (CCC) is a not for profit U.S. company based in Danvers, Massachusetts, that provides collective copyright licensing services for corporate and academic users of copyrighted materials. CCC procures agreements with rightsholders, primarily text… …   Wikipedia

• Signalling block system — Signalling block systems enable the safe and efficient operation of railways, so as to avoid collisions between trains. Block systems are used to control trains between stations and yards, and not normally within them. Any block system is defined …   Wikipedia

• North American railway signaling — For the actual physical signals, see North American railroad signals. Standards for North American railway signaling in the United States are issued by the Association of American Railroads (AAR), which is a trade association of the railroads of… …   Wikipedia