ETCS European Train Control System. Development and implementation in Italy

Roma : CIFI, 2007.
Pagine 316. Cm. 29x21.
ISBN 978-88-95634-01-2

Testo in inglese

The ETCS is the future of railway signalling system and is the automatic train travel control and protection system of today. The first application of the ETCS in the world is on the two italian railway lines Roma - Naples and Milan - Turin. This book, describing the above projects, is an initial and rapid means of communicating the new concepts, investigating the general characteristics on the ETCS system and offering professional updating opportunities for all those who wish to understand more about this fascinating issue.

Indice del libro
Foreword	7
Introduction	9
The Authors	10
Acknowledgements and Key factors of success	11
Index to Figures	13
1. Description of text, definitions and acronyms	19
2. The ERTMS in Italy: integration of the High-Speed project and European Interoperability	35
3. ERTMS and Interoperability	43
What is ERTMS?	45
Objectives of ETCS	48
ERTMS/ETCS levels	53
Development of ERTMS specifications	54
Management of Unisig Specifications and the new "BaseLines"	57
4. Architecture and Operation of the HS Signalling Subsystem (HSSS)	59
General	59
Safety connection	62
General architecture	65
Functional Architecture	68
Functional architecture and delimitation of the signalling system	68
Physical Architecture	70
The ETCS Level 2 Ground Subsystem (SST)	75
Fixed Peripheral Points (PPF)	76
RBC	77
Operating modes	77
Types of ground Train Separation Subsystems	77
Train Separation Subsystem - Ground part - Alstom type	77
Train Separation Subsystem - Ground part - Ansaldo type	84
Radio Block Sections	87
RBC data and virtual signals	87
Point mechanisms	90
Point mechanisms for radii less than or equal to 0.074	90
Track Circuits (cdb)	90
Lowering pantographs (POC) and neutral stretches (PCF)	91
Kilometre markers	91
Information Points (PI) - Spatial reference	91
Telecommunications System	92
GSM-R	92
Long Distance TLC Subsystem	94
The ETCS Level 2 Trainborne Subsystem (SSB)	97
Description of trainborne subsystem equipment	97
Description of main displays	99
CAB Radio	102
5. Description of System Operation	103
Operation without degrades	103
SSB connection and data entry (start of mission)	106
Entrance into the ERMTS area	109
Itinerary Management	114
POC Management	119
Phase Change	120
FS Mode Management	122
RBC Handover	126
Exit from the ERMTS area and end of mission	130
Degraded operation	134
SoM (Start of Mission) from PdS (PPF)	134
SoM (Start of Mission) in line	134
End Of Mission	139
Emergency Management	141
Unconditional emergency stop management	141
Urgent close of Station management	142
Conditional emergency stop management	142
On Sight travel management	147
Staff Responsible travel management	147
Override Procedure	150
RTB alarm management (Track-Train)	152
Train management with "very hot" alarm	153
Train management with "hot" alarm	154
Deceleration management	156
Setting a TSR	157
Activating a TSR	157
Cancelling a TSR	158
Protection of stopping points at the entrance to or inside a Station	158
Stopping at the entrance to a PdS	160
Arriving at the station and stopping at the end of an MA	160
Single component exclusion protection	161
Excluded Station Zone (PdS) protection	161
Radio block inversion management	162
In-line stopping point protection	164
Line out of service protection	164
Reversing	166
Braking commanded by the ETCS SSB	169
6. ERTMS/ETCS Level 2 Life Cycle	169
Project organisation	171
Validation and assessment process	171
Trainborne Subsystem	175
7. CENELEC life cycle for ERTMS/ETCS Level 2 in Italy	177
Phase 1 Target concept of the railway project	177
Mission profile	177
Train Separation Safety Objectives	177
Phase 2 System Definition and Application Conditions	180
Phase 3 Risk Analysis	181
System FMEA and FTA analysis	181
Phase 4 System Requirements	186
Verification Reports of Requirement Specifications	186
Phase 5 Apportionment of System Requirements	187
Phase 6 Design and Implementation	187
Phase 7 Manufacturing and Phase 8 Installation	190
Phase 9 System validation including safety acceptance and putting into service	190
Safety Cases and Technical Safety Reports	196
Assessment	204
RFI Technical Department Technical Committee	205
Functional Assessment activities for the Generic Application and initial Specific Application of the ETCS Level 2 SDT	206
Safety assessment	211
Organisation of tests in worksite, pre-operation and operation scenarios	211
Incremental regulatory process for ETCS level 2 train testing and sequencing	213
Train Separation System Technical Verification Commission	213
Qualification and training	217
Pre-operation period	217
Phase 10 System Acceptance	218
Phase 11 Operation and Maintenance	218
Phase 12 Performance Monitoring	218
Phase 13 Modification and Retrofit	219
Phase 14 Decommissioning	219
Future Developments and New Solutions	220
ETCS Level 1	222
8. Analytical Sections	225
Radio Messages - Message 3 Movement Authority	225
Alstom RBC Path Concept	227
ACC (IXL) and RBC interfacing	228
Alstom RBC keyboard	232
Speed step before stopping the train	233
Odometry and ETCS train braking curves	234
Management of Cryptographic Keys between ETCS Level 2 SST and SSB	236
RBC Condition Tables	238
RBC Logic	241
Detecting the illegal occupation of the track circuit subsequent to the one occupied by the train (first axle occupation or "shadow track circuit")	251
Time parameters for radio disconnection management	253
System Response Times	256
ETCS Error Management	258
National Values and suitability and ERTMS/ETCS Level 2 parameters	260
Delayed opening of the Virtual Signal	262
Management of Line Management subsystem components	263
Configuration documentation for ETCS L2 SDT SST and SSB	265
Safety requirements	270
Design and development process	273
ERTMS/ETCS Level 2 Workshops and Trial Sites	288
Assessment Backup Tools for Specific Applications of ETCS level 2 SST	290
SSB Homologation Process	292
Functional assessment of test specifications using formal methods	294
Train sequencing tests - Integration ETCS L2: SST ASF and SSB Alstom	295
GSM-R integration on the Rome-Naples HS/HC line	300
Reference documents	301

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