(rail transport) Of a section of railway line, provided with track circuits.

(sports) A track having a soft springy rubber surface and lane markings, designed for exercising and running races. / A track for exercising animals, especially racehorses.

(finance) A specialized equity offering issued by a company that is based on the operations of a wholly-owned subsidiary of a diversified firm.

(Britain) pursuing two objectives by employing two simultaneous processes / (rail transport) Synonym of double-track.

(rail transport) Having four running lines, usually two in each direction.

(rail transport) Railway track mounted on a concrete (or asphalt) base, without the use of ballast.

using the wrong general approach to a particular task or problem; pursuing something in an unpromising way

simple past tense and past participle of fast-track

(rail transport) Provision of four running lines on a stretch of railway track, usually two in each direction.

plural of tracking stock