1992 – Nov – Perry – State Railway of Thailand – Resignalling Provisi
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Technical Meetings are held three times per year.
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JT Skilton Signalling systems within Tranz Rail which require control from a remote location can be classified into three types, Centralised Traffic Control (CTC), remote controlled interlockings in Track Warrant (TW) territory and remote controlled interlockings embedded in Double Line Automatic (DLA) signalling. The CTC systems control the movement of trains in both directions over a single line section divided up into block sections and crossing loops. A field unit is installed at each crossing loop for the purpose of communicating with the control centre. TW control requires all trains to hold a warrant for the section of line being traversed. This warrant is issued to the locomotive engineer verbally over the train radio system and checked for correct reception by reading back over the radio system to the control centre. A selected number of crossing loops within TW territory are fully interlocked and equipped with a field unit which allows the Train Control Operator (TCO) to have full control over motor points and signals. Centralised control of interlockings in DLA territory is used where junctions between main and branch lines occur. Central control is used for movements to and from the branch line and, although it can also be used for signalling along the main lines, the interlocking can be switched to automatic for main line movements.
Wayne McDonald Computer based interlockings today must be adaptable to the vastly different environments found in the many rail networks throughout the world. This paper overviews some of these environments where one such system, WESTRACE, has been installed and it highlights some of the special requirements essential to suit those locations.
Peter Brock, Frank Ebzery & Bruce McMurtrie The construction of the Year 2000 Olympic facilities and the relocation of the Royal Agricultural Show Grounds Homebush Bay requires the construction of a high capacity transport link. Heavy rail is the only transport system that will supply the required capacity. The new Homebush Bay rail Loop will connect Olympic Park and the new Homebush Bay Showgrounds with the rest of the Sydney metropolitan rail networkTrail loop is nearing completion and will be commissioned on the 22/23 November 1997.
Peter R. Milton Southern District Manager Australian National This paper reviews the concrete sleeper project being carried out on the Adeiaide to Melbourne Broad Gauge line between KiKi and Wolseley, and inciudes details of the processes involved and problems encountered in manufacture and installation.
G. K. Kelly, B.Sc, B.E.Hons Project Manager, Railway Communications, Applied Technology Systems, Telecom Australia This paper describes the Trans Australian Railway Communications System, which provides the backbone infrastructure for the Austrac Train Control System, as well as mobile voice communications and wayside communications requirements. The system is based on optical fibre transmission, and covers a 1700 km track through some of the most remote areas of Australia. Most of the system is solar powered.
J. Smith Teknis Systems Australia Pty. Ltd. This paper describes an advance warning system to protect both personnel and equipment at railway maintenance work sites. A brief history of the system is given, followed by a technical overview of its operation and use. The paper concludes with a discussion of the system in a working environment, and a description of recent developments.