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Maintenance policies
Bernard SCHAER
Director of Contracts & Customers Services
SNCF Infrastructure Branch
EFRTC
June 11th, 2010
1 SNCF Infra | juin 2010
1 | SNCF INFRASTRUCTURE BRANCH
SNCF INFRASTRUCTURE BRANCH : 3 DOMAINS
MAINTENANCE & TRAVAUX
33,000 people
60 local entities

Maintenance of the railway network

Management of investments for RFF and SNCF

Troubleshooting 24/7

Timetable management

Traffic Control

Safety and punctuality of the railway system

Rail projects in France and throughout the world

Expertise and project management

Management of investments for RFF and SNCF
€3,500 m 2009
CIRCULATION FERROVIAIRE
14,000
people
21 local entities
€950 m 2009
INGENIERIES
5,100 people
€650 m
2009
IG , INEXIA, SYSTRA
3 SNCF Infra | juin 2010
SNCF INFRA MANAGEMENT
SNCF INFRA
P. IZARD
C.E.O
HUMAN
RESSOURCES
FINANCE
INFORMATION
SECURITY
COMMUNICATION
TRAFFIC SAFETY
STRATEGY
WORK &
MAINTENANCE
X. OUIN
Director
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CONTRACTS &
CUSTOMER SERVICES
B. SCHAER
Director
ENGINEERING
F.DELORME
Director
TRAFFIC CONTROL
DCF
A.H. BERTRAND
Director
2 | THE FRENCH RAILWAY SYSTEM
FRENCH RAILWAY SYSTEM AT A GLANCE
Other operating Companies
Operators
Safety body
Regional
Authorities
(fund local trains)
Regulatory body
ARAF
Payments
for paths
Stations management
Infrastructure
Maintenance contract
State
Operation contract
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Infrastructure Manager
SOME OF THE ACTORS OF THE SYSTEM
ARAF
R.F.F.
E.P.S.F.
ARAF
Réseau Ferré de France
Etablissement Public de
Sécurité Ferroviaire
Autorité de Régulation
des Activités Ferroviaires

Created in 1997


Owns the network



Took over €20.4b of
historical SNCF
debt (SNCF
retained €7b)
A performance
contract was
signed with the
State in November
2008
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
Created in march 2006

European directive
2004/49

Monitors safety issues
on the national railway
network
Created by law in
December 2009
D.C.F

Regulatory body for
the railway sector


SNCF Infrastructure
Direction de la Circulation
Ferroviaire
Should be in place
before the end of 2010

DCF still belongs to
SNCF, however has
some kind of an
independent status
Its director is named
directly by the
government.
DCF works for RFF
and is responsible for
Traffic Control



Maintains the
network
Manages
investment works on
behalf of RFF
A maintenance
contract is signed
between SNCF and
RFF since 2007
3 | THE FRENCH RAILWAY NETWORK
The French Network
Total track length
•
UIC 1 à 4 :
19885 km ( included 3839 km HSL )
9969 S & C ( included 754 HSL )
•
UIC 5 et 6
13803 km - 7621 S & C
Regional lines
•
•
with passengers : 11723 km - 4113 S & C
without passengers: 4417 km - 2171 S & C
Side tracks 14949 km - 46177 S & C
Power supply
Level-crossings 18843
Bridges 40914
Tunnels 1 588 (631 km)
Signal boxes 2256
Sub-stations: 535
Overhead lines
1500 V: 12 547 Km (40%)
25 000 V :19 098 Km (60%)
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Study of EPFL 2005
The study made by EPFL in 2005 showed
Bad conditions of the network
 No optimization of M/R: The share M/R was 2/3;1/3 when it was from 1/2;1/2 up to 1/3;2/3 in other
europeen countries
 No optimization of track possession : According to the EPFL, track possession duration was too short
(1h50) and no technically and economically efficient
 No optimization of traffic control : There were too much signalling boxes

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What has be done so far
At the end of 2005, RFF,SNCF and the French Government came to an agreement of an increasing of funding for
renewal
1780
1800
1800
1800
A 2013
A 2014
A 2015
1550
1343
899
1048
700
A 2005
A 2007
A 2008
A 2009
A 2010
A 2012
2005
2007
2008
2009
2010
2012
2013
2014
2015
Track
450
602
740
965
997
1183
1269
1237
1231
Bridges
120
130
123
132
140
197
Sign
80
75
105
144
176
307
OHL
40
50
47
51
55
61
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What has be done
A model of the network’s evolution has be done
60
55
These figures show that the track renewal program do not allow to
modernize the network
50
45
Courbes d'évolution de la substance UIC 1-6
40
35
60
30
2008
2009
2010
2011
2012
2013
2014
2015
2016
55
Courbes d'évolution de la substance UIC 1-4
50
60
45
55
40
50
45
35
40
30
2008
2009
2010
2011
2012
2013
2014
35
30
2008
2009
2010
2011
2012
2013
2014
2015
2016
Courbes d'évolution de la substance UIC 5-6
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Without renewal
With Perfomance Contract
2015
2016
What is going on
RFF has defined his strategic vision of the network
 Definition of freight corridors with high level of availability
 More accurate definition of the performance of the network according to the different routes, eg:
 Axel load
 Speed
 Gauge
 Availability
 Increasing of the slots for TOCs and FOCs
 Decreasing of maintenance and renewal costs
So SNCF has to improve the maintenance policies, in order to have more trains, more availability, as
all Infra Managers do.
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Maintenance policies
These huge requirements lead to



An optimization of maintenance and renewal, that means an assessment of the policies on each
route based on LCC
More efficiency of the renewal
 Longer zones
 Uniformization
 Planning
The necessity of planning and reducing maintenance costs; the best way is to move from an « on
condition » based maintenance to a predictive maintenance
14 SNCF Infra | juin 2010
Predictive maintenance
To do that,it is necessary:
 To have a good knowledge of the conditions of the network
 To know the parameters which have an impact on the behaviour of the components of the
infrastructure
 To know the degradation’s laws of these components according to the sollicitations they have to
support
In order to plan the interventions
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Predictive maintenance

The knowledge of the degradation’s laws,eg:
Track circuits components
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Tools


Development and implementation of measurement cars
 IRIS 320 already in operation
 Purchase of new measurement cars for conventional lines
Development and implementation of tools in order to modelize the degradation’s laws and so to define
« what to do » and « when to do » eg:
 Contact wire wear measurement and planning of replacement (with « Catalyse »)
 Track geometry quality measurement and planning of tamping (with « TIMON »)
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Contact wire wear measurement
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Contact wire wear analyse
CATALYSE
Affichage N° support
Affichage des courbes sur
différentes années de mesures
avec les couleurs
correspondantes.
Bleu= année 2005
Orange= année 2007
Vert= année 2009
Tableaux de synthèse classés par ligne
Tableau de prévision de remplacement
Tableau de suivi baguettes
Tableau de suivi des périodicités de mesures
préconisées dans les référentiels
Seuil d’alarme
Résultats des différents calculs (% inexploitable, section moyenne des FC, point le plus bas,
homogénéité,….) des différentes années de mesures
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CATALYSE
Différents traits de couleur
suivant les années de mesures.
Bleu=2007
Orange=2009
Vert= Projection 2013
Sélection des fichiers de mesures de référence et choix de la date de
projection
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TIMON HSL 1
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TIMON Conventional Line Paris-Le Havre
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Remote control

Development and implementation of remote control for level crossings Signalling and S & C in 3
Supervision Centers (Paris, Lyon,Pagny/Moselle)
Curve of translation of
a switch
23 SNCF Infra | juin 2010
Maintenance methods
Implementation of new methods of maintenance for a higher durability of the interventions eg:
 Tamping in BAS
 Grinding
 Tamping and grinding
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Optimization Maintenance/Renewal
X/T
Ymax(T)/T
Ymin(T)/T
Niveau de
saturation de
«jour»
Niveau de
saturation de
«nuit»
T (âge de renouvellement)
To To
X = Coûts de régénération à la
date 0
25 SNCF Infra | juin 2010
Y(T) = Coûts cumulés d’entretien
de 0 à la date T
Models of maintenance costs
Maintenance costs are modelized according to track possession and distances between stations
D = 25km
14
12
10
8
Nombre de périodes
6
5
4
7
9
11
2
13
15
0
P
br
e
e
N
26 SNCF Infra | juin 2010
/6
h
/5
h
19
P
P
br
N
N
br
e
e
br
N
N
br
e
Y
/4
h
P
P
/3
h
/2
h
17
Age Voie
12-14
10-12
8-10
6-8
4-6
2-4
0-2
Models of maintenance costs
D = 50km
25
20
15
20-25
15-20
10-15
5-10
0-5
Nombre de périodes
10
5
7
9
5
11
13
15
N
br
e
P
N
/2
br
h
e
P
N
/3
br
h
e
P
N
/4
br
h
e
P
N
/5
br
h
e
P
/6
h
0
27 SNCF Infra | juin 2010
Y
17
19
Age Voie
Thank you for
your attention
Q&A
28 SNCF Infra | juin 2010