La gestione del traffico ferroviario
con le nuove tecnologie satellitari
Come GALILEO puo’ contribuire a
rendere piu’ efficienti le linee locali e
regionali
Francesco Rispoli
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Accurate & Safe Train Position
Localization
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2
Spazio di frenatura «rapida» Freccia Rossa
300 km/h
120 km/h
4500 m
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750 m
3
ERTMS: Sistema Standard Europeo
Fixed block
Moving block
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ERTMS: ETCS + GSM-R Architecture
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+TS
ERTMS: Interfaccia bordo treno
Max
speed
Target
speed
Actual
speed
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6
Localizzazione in sicurezza
As defined in SUBSET-088 Part 3 [A26], the top-level hazard “Exceedance of safe speed /
distance limits as advised to ETCS “due
to technical failures, must not occur with a frequency greater than
THR < 2.0 * 10-9 hour-1 train-1
Pprot.
Pnom.
Position
Confidence Error
10E-8/1h
CI
Pprot.
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Funzione odometrica
balise
Accuratezza odometrica (CI): 5m + 5% Dpercorsa
SIL 4
CI
D
virtual balise
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8
Train Position Determination with GNSS
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9
Train Integrity
Buf
fer
Estimated
Train Length
Buf
fer
Reserved
section
Buf
fer
Estimated
Train Length
Buf
fer
Reserved
section
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Train Integrity: capacity increase
ION 2014, Tampa
Protection Level
Virtual Track Circuit
~ 40-60% + capacity
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11
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12
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13
“Satellite navigation is set to revolutionise the rail sector,
and ETCS will make it possible to monitor the exact
location of each train in real time”
Safe train positioning
ERTMS is a major European industrial project (similar to Galileo for satellite
navigation or SESAR in air traffic management) and provides increased
export opportunities for the EU.
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The virtuous cycle
Increase
market
Virtual balise
Making investments
more
attractive
Satellite-basedEnsure
solutions for Train
Space
ERTMS
technology
Control Systems
compatibility
Exploit new
Rail applications
technologies
ERTMS
EGNSS
• Lower operational costs
• EGNOS operative
• Improve competitivity
• GALILEO under development
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Technology shift
•
•
•
•
Move the “intelligence” from the track side to the trains
Use GNSS to replace the fixed blocks and reduce trackside equipments
Improve the safety especially on low traffic lines
Increase the frequency of train without investing on the infrastructure
A public EGNOS-GALILEO
infrastructure is key to provide
positioning function to the ERTMS
EGNSS
(EGNOS, GPS
Galileo)
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Segmentation of Regional Network in Europe
CERTeT
REFERENCE SCOPE
17
 Unit costs and benefits per km are applied to the clusters of lines according to their types.
Economical Evaluation on Regional Network in Europe
CERTeT
COSTS AND BENEFITS (NPV IN 35 YEARS) BY TYPE OF LINE (EURO)
18
 Overall, the introduction of ERTMS satellite in the Regional European Network * generates
benefits for some 35 billion Euro, with costs which sum up to 16 billion Euro in a 35-year
time horizon. The overall Benefit/Cost Ratio is 2.2.
* selected countries
NB: This figures derive from a parametric expansion, therefore cannot be as accurate as a case-by-case
analysis which takes into account specific national features in terms of control systems and project
timetable
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j.Benedicto,
ENC-2014
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j.Benedicto,
ENC-2014
Multi-Constellation
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Teunissen,
ENC-2014
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23
Rail
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Supporting
partner
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ERSAT
Enhanced Railway Signalling Application
ERSAT EAV
Multibearer
TLC
solution
Satellite-based enhanced localisation
Multi constellation
EGNSS-based localisation
Local Area Trusted
Augmentation
service
ERTMS
Localisation in
GNSS-denied areas
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EGNOS
Galileo
Early
Services
+TS
Reference architecture
Radio Block Center
(RBC)
LDS & Train Integrity
TALS
Wide Area Augmentation
Networks
QoS
Track Area
Augmentation
Network
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RS 1
RS 2
…
RS n
TEST BED
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ERTMS & GNSS equipments
Local Au-Network
RBC
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