Jointless Track

Jointless Track


arbitrary designation of a railroad track on which the distance between the rail joints greatly exceeds the length of a standard rail. Jointless track is intended to withstand temperature tensions that are considerably higher than those faced by an ordinary railroad track (up to 150 meganewtons per sq m) and which arise in the rails as a result of variations in air temperature. In the USSR jointless track is made in lengths up to 800 m. Jointless track became widespread in foreign countries in the 1950’s and in the USSR in the 1960’s. Rail lengths for this type of track are manufactured from standard (25-m) rails by welding at the enterprises (bases) or immediately at the laying site. Jointless track is distinguished by its high performance quality (which permits the high-speed movement of trains), riding comfort for passengers, and a reduction in expenses for maintenance of track and rolling stock. More than 10,000 km of jointless track have been laid in the USSR (1968).


Al’brekht, V. G. Besstykovoiput’ i dlinnye rel’sy. Moscow, 1967.


References in periodicals archive ?
To fulfill the terms of the contract, BCS will provide approximately 900 UM71(TM) jointless track circuit units for installation on the Beijing Railway Bureau's Beijing-Shanhaiguan line.
Once the CITYFLO 450 systems enter operation during the second phase, the existing conventional equipment will be replaced as well by new state-of-the-art devices including EBI Track jointless track circuits and EBI Switch 700 electro-hydraulic point machines as well as LED (Light Emitting Dials) type signals.
Invensys Rail will also install automatic train stop equipment, WESTRACE electronic interlockings, FS3000 jointless track circuits, level crossing safety systems, GSM-R voice and data communications, and a Central Traffic Control Centre in Balikesir.
The replacement of insulated block joints with a more reliable system of jointless track circuits
The Dimetronic solution involves Westrace Electronic Interlocking systems, FS3000 jointless track circuits, LED-type wayside signals and a Rail 9000 Centralized Traffic Control (CTC) situated at Ankara station.