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30
variable data including signal aspects, approaching station stops or speed reductions for diverging routes.
INTEGRATED CONTROL SYSTEM
On September 30, 2004 Kowloon–Canton Railway Corporation put into operation a fully integrated
control and communications system (ICCS), as a part of the upgrading of its 34 km East Rail corridor from
Kowloon to Lo Wu. With traffic on this two-track railway forecast to exceed 1 million passengers per day by
2006, KCRC decided to resignal the line and fit automatic train protection to raise capacity from 20 to 30
trains/h in each direction.
Four contracts were to cover the signaling, a new control centre, track and catenary upgrading and
a major track reconstruction at Pak Shek Kok.
The main control centre at KCRC’s Fo Tan headquarters controls the line via a wide area optical fibre
network linking 13 stations. ICCS functions include:
- automatic route setting;
- automatic dispatching and regulation;
- electric and traction power control;
- general and secure telephone links;
- general and train radio links;
- automatic and manual passenger information displays and public address;
- headway clock control;
- power plant monitoring;
- CCTV monitoring of level crossings.
All of these are handled by a common screen-based operator interface.
The system architecture guarantees an availability of 99-99.8%. The workstations are based on easily-
upgradeable PC hardware running a reliable Unix operating system and Unix-based software. All workstations
are identical, with access controlled by user. Train control zones are selectable for each operator. Telephone
and radio calls are automatically routed to operators with the selected control zones.
The 80 km Fibre Distributed Data Interface optical fibre network uses reliable industrial standard,
DC-powered, three-port concentrators. Station Information Workstations at all locations provide the same real-
time displays and system response times as seen by the controllers in the control center.
Passenger Display Units feature two-line back-to-back high brightness LED displays which show both
Chinese and English messages. Extensive system-wide built-in diagnostic displays are matched with tools that
allow remote diagnosis and error finding from the control centre.
NETWORK MANAGEMENT SYSTEMS TO SET ROUTES AT VINH
Vietnam’s third largest city, Vinh, is getting the latest in network management systems (NMS) under
a contract with Siemens Integra Verkehrstechnik to install power interlocking covering the station area. Vinh is
319 km south of Hanoi on the main coastal trunk line.
NMS provides supervision from computer work stations of all the operational functions needed to
manage the movement of trains. Power can be monitored to control signals and points, level crossings and even
catenary.
The first NMS installation was at Bern, where the first of 20 stations was brought under control in 1995.
To complete the project such installations have been also put into service on 14 surrounding stations.
The traditional signaler’s wall panel has been removed, and operators will work entirely with VDUs on their
desks. A high level of automation is applied, including route setting. Maintenance is supported by data
recording and analysis.
The contract for signaling at Vinh was signed in 1997 and was completed by the end of 1998.
A Domino 70-E computerized interlocking device controls 14 main signals, 19 shunt signals and 22 points.
There are 18 axle-counter detected sections, seven tracks through the station itself, and a number of sidings.
NMS interfaces with the existing single-line block equipment north and south of the station.
The graphical interface allows signalers to control the interlocking mainly by mouse using drag-and-
drop¹ techniques, and also other equipment such as the stand-by diesel generator. Other NMS functions, not
specified at this stage but available subsequently if desired, include automatic route setting, train describer, train
databases and passenger information.
Note : 1) drag-and-drop – перенос с последующим высвобождением, “перетаскивание“ (функция
графического интерфейса для работы с экранными объектами в среде Windows)

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