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Report
Study on the Plan of the RBTC
technology development unrelated to
Speed and Operational Environment
2010-10-28
Study on the Plan of the RBTC technology development
Train Control & Communication Research
Contents
1

Introduction

TCS(Train Control System) : Definition

TCS : Composition

TCS : Development History

TCS : Developmental direction of future

RBTC(Radio Based Train Control) : Definition

RBTC : Development case study : ETCS, CTCS, CBTC

RBTC : Development plan

Conclusion
Study on the Plan of the RBTC technology development
Train Control & Communication Research
Abbreviation
2
TCS : Train Control System
RBTC : Radio Based Train Control
TGV : Train a Grande Vitesse = French High Speed Train
IT
: Information Technology
CTC : Centralized Traffic Control
IXL
: Interlocking
ATC : Automatic Train Control
ATP : Automatic Train Protection
ATO : Automatic Train Operation
ATS : Automatic Train Supervision
ETCS : European Train Control System
CBTC : Communication Based Train Control
CTCS : Chinese Train Control System
ISM : Industrial, Scientific and Medical radio band
GSM : Global System for Mobile
Study on the Plan of the RBTC technology development
Train Control & Communication Research
1. Introduction
3

Many countries made more effort to develop the railway
transportation under the slogan of Railway Renaissance.

574.8km/h : New record of Max. speed in TGV(Train a
Grande Vitesse : French High Speed Train) on 10th June
2007

The study of safe TCS according to speed up was
necessary

And also, Application of IT(Information Technology) and
Radio communication

In this conference, I introduce the plan on RBTC
technology development unrelated to speed and operational
environment.
Study on the Plan of the RBTC technology development
Train Control & Communication Research
2. TCS : Definition
4

TCS definition : All command & Control related to the
train operation and movement

TCS Role : Analyze train movement direction, train
speed, distance between trains, operational
environment, and wayside safety, and Transfer
movement authority in driver.

TCS consists of CTC, IXL, Safety equipment and Train
control

CTC : Handling & Monitoring of train movement

IXL : Decision of train route

Safety Devices : Protection of Rolling Stock, Staff, materials

Train Control : Command & Control of train speed
- ATC, ATP, ATS, ATO.
Study on the Plan of the RBTC technology development
Train Control & Communication Research
3. TCS : Composition(1/2)

TCS in Gyoungbu High Speed Line

Consists of CTC, IXL, ATC and Safety devices
Study on the Plan of the RBTC technology development
Train Control & Communication Research
5
3. TCS : Composition(2/2)

TCS in Honam Conventional Line

Consists of CTC, IXL, ATP and Safety devices
Study on the Plan of the RBTC technology development
Train Control & Communication Research
6
4. TCS : Development History

7
Transition of TCS technology
On board signal
(CL)
F : (ATP) :
Ebicab, KVB, ZUB
Wayside Signal
K : 3,4,5 Aspects
signal
F : 3 Aspects signal
Wayside Signal
+ Safety device
K : ATS
F : AWS, ASFA
Signum, Indusi
On board signal
(HSL)
F :(ATC) :
TVM, LZB, ATCC
On board signal
(metro, LRT)
F : (ATC/ATO) :
SACEM, ATC/ATO
1st Generation
1930
Less then 150km/h
2nd Generation
1960
180km/h
Study on the Plan of the RBTC technology development
3rd Generation
1980
270km/h
On board signal
(CL : Interoperability)
K : ETCS Level 1
F : ETCS Level 1
On board signal
(HSL : Interoperability)
K : TVM430
F : TVM, LZB,
ETCS Level 2
On board signal
(Radio)
K : RTCS
F : ETCS Level 3
On board signal
(Metro, LRT :
Driverless))
K : MBS, CBTC
F : MBS, CBTC
4th Generation(1)
2000
300km/h, Driverless
4th Generation(2)
2017
More then 350km/h
Train Control & Communication Research
5. TCS : Development direction of future

Application of IT and Radio
: Train control -> Automation, Driverless
: Real time Diagnostic and
supervision
Study on the Plan of the RBTC technology development
Train Control & Communication Research
8
6. RBTC : Definition(1/2)
9

Application of Radio communication in TCS

TCS are realized by changing from train control equipment
such as Track Circuit, Balise or Loop installed in rail, to
Radio communication antenna in wayside
Train Control Information
Radio Block Center(Signaling Room)
Study on the Plan of the RBTC technology development
Train Control & Communication Research
6. RBTC : Definition(2/2)

10
Comparison between ATC, ATP and RBTC methods
Study on the Plan of the RBTC technology development
Train Control & Communication Research
7. RBTC : Development case study

RBTC Application example

CBTC : Communication Based Train Control

ETCS Level 2, Level 3 : European Train Control System

CTCS Level 3 : Chinese Train Control System
Study on the Plan of the RBTC technology development
Train Control & Communication Research
11
8. RBTC : Development Plan

12
Development Goal :
- Train operation safety
- Speed up of operation train
- Minimum Headway
- Minimization and Simplification of Operation & Maintenance
- Application of IT & Radio communication
Study on the Plan of the RBTC technology development
Train Control & Communication Research
8. RBTC : Development Plan

Comparison of RBTC development process
Study on the Plan of the RBTC technology development
Train Control & Communication Research
13
8. RBTC : Development Plan

Radio communication : method and frequency

CBTC : use 2.4GHz ISM band -> security and output
power will be limited -> change and modification of
frequency

ETCS : use 800~900MHz GSM -> problem of data
quantity -> application of 4th Generation
Study on the Plan of the RBTC technology development
Train Control & Communication Research
14
8. RBTC : Development Plan in Korea
15

Not consider interoperability between countries like ETCS

Not necessary the development stage of ETCS L1, L2, L3

Apply the well-developed radio system in Korea

Set up the speed used in current railway as a stage specific
goal -> 150km/h, 230km/h, and 400km/h

Accomplish Speed improvement from R&D

Realize in the way to complement the lack of technology
required in each CBTC and ETCS
Study on the Plan of the RBTC technology development
Train Control & Communication Research
9. Conclusion
16

For the technology development of RBTC for HSL in Korea,
as shown in the previous page, we select the core
technology required to establish the systems as a priority

and then we set up the speed suitable for each operation
environment(150km/h, 230km/h, 400km/h)

In this way, it is expected that it will be desirable to push
forward step-by-step speed improvement and the
commercialization in parallel.

In terms of not only radio utilization in TCS but also the
compatibility with all the fields of railways and operation
environment, it is expected that the application of radio
communication shall ensure the availability of railway
transportation with more easiness.
Study on the Plan of the RBTC technology development
Train Control & Communication Research
Study on the Plan of the RBTC technology development
Train Control & Communication Research

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