Railway Signaling System

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Configuration of Railway Signaling System

The Railway Signaling System consists of the Central Control Room (ATS), the Station Signaling Equipment Room and the wayside facility.

The ATS monitors and controls train operation, comprehensively manages data on signaling equipment, and monitors and controls the entire signaling system.
Station Signaling Equipment Room is equipped with electronic interlocking, wayside ATP/ATO equipment, consoles and communication interface devices to monitor and control wayside facilities.
The wayside facility receives control information from the station signaling equipment room, controls train operation, and sends the train status information to the station signaling equipment room.

Devices and functions of the Railway Signaling System

Devices and functions of the Railway Signaling System
Device Function Remark
(Automatic Train Supervision)
- Management of Train schedule
- Supervision and control of train operation
Non-vital function
(Automatic Train Protection)
- Real-time tracking of train location
- Determination of train movement authority
- Creation of the speed profile
- Train speed supervision and emergency braking
Vital function
(Automatic Train Operation)
- Control of train speed
- Control of precise stop position
- Door open control
- Interface with train and onboard equipment
Non-vital function
(Electronic Interlocking Equipment)
- Control of train route
- Control of point machine and signal
Vital function

Configuration and function of the ATS

Configuration and function of the ATS
Device Detailed functions
(Main Server)
- Monitor and control train operation in real time
- Automatic or manual control of the local signaling equipment
- Automatic train operation control by train schedule
- Record and manage train operation status
(Schedule Server)
- Train schedule management
- Train operation performance management
- Backup function of the TCC in the case of a failure of the TCC
Console - Operator console for monitoring and controlling train operation
- Supervisor, operator, maintainer, Train supervision and schedule control
- Performing communication interface with external ATS facilities
- Train Information Dispatch System(TIDS), SCADA, master clock Weather Surveillance, CCTV
- Communication server or CDTS(Center Data Transmission System)
Large Display Panel - Display of train operation status
- Wall controller and DLP
Communication Equipment/Printing Device - Composition of the communication network between facilities in the CCR(Central Control Room)
- Various printing and floating devices

Configuration and function of the Station Signaling Equipment Room

Configuration and function of the Station Signaling Equipment Room
Device Detailed functions
EIE - Receive operator control commands and control commands from ATS
- Automatic control of adjacent signal facilities using train movement information (Track circuit, switch, signal, etc.)
- Send control results and status to ATS
- Performing communication interface between ATS and Station Signaling Equipment Room
- LDTS(Local Data Transmission System) or IFS(Interface system)
(Local Control Console)
- Monitoring and controlling the operation of trains in areas controlled by electronic interlocking systems at interlocking stations
- Train and signal equipment control after obtaining control over this section, if needed by the operator or failure of the ATS
Wayside ATP/ATO
- Train protection and automatic operation of trains
- Creation of a train speed profile
- Determination of train movement authority(MA)
- Train speed supervision and braking
- Automatic train operation and precise stop position control
- Train speed control