ERTMS state of the art and evolution of the applications considering customer’s orientations

1. Customer’s demands and expectations2. ERTMS state of the art and evolution3. Conclusions

SUMMARY

Group and ERTMS

• Born in 1917, CAF is today a global leader in the design and supply of solutions for the railways industry

• Experience in more than 30 countries around the globe• Turnover reached 1.721 million Euros in 2.012• Traditional core business on Rolling Stock

• Signalling and Integrated Railway Projects identified as strategic new business

• Portfolio of Signalling products includes Electronic Interlocking, LEU and RBC

• Member of UNISIG from 2012

1. Customer’s demands and expectations on ERTMS

1. Customer’s demands and expectations on ERTMS

A. Lower Investment CostsB. Lower Life Cycle costsC. Decrease dependency on specific vendorsD. Compliance to specific operational rulesE. Decrease project completion time / delaysF. Achieve Operational benefits: interoperability, capacity,

improved punctuality, shorten incident recovery…

This applies both to:• Infrastructure Managers for Wayside Signalling Systems• Railway Undertakings for On Board Units

2. ERTMS state of the art and evolution

Which is the ERTMS state of the art, compared to customer expectations?

Which improvements are being done or have to be done?

2.1 ERTMS Investment Costs (1)

Harmonisation of Operational and Engineering rules. Formalisation of track description and project-specific requirements. Minimise country specific rules

• Management of Requirements

• Signalling equipment: LEU, RBC, Interlocking

• Radio Communication System (L2)

• Engineering and adaptation to:• Specific project layout and

requirements• Country specific operational rules

Formal / Semiformal Requirements

Standard equipment. Cost is not so relevantNeed to change Interlockings not always needed

Signalling system independent from the Comms System. Apply new comms technologies. Standardised interfaces Signalling-Comms.

Standard, stable requirements. Mandatory and optional requirements. Different choices

Proven GSM-R Standard

Risk of significant impact on costs

STATE OF THE ARTEVOLUTION

2.1 ERTMS Investment Costs (2)

• Trackside Equipment and Cabling

• Installation and Commissioning

• Safety Approval process

• Flexibility to fit different needs

• Take benefits from the standardisation

Future optional functions (ATO…)

ERTMS choice of options: L1, L2, L1-LS, etc. Optional functionalities

Solutions with less equipment on track. Virtual balises. Satellite train positioning

Dependent of the selected choices

Simulation + Less testing on field

Standardised Testing Procedures

Dependent on the selected choices

Common Safety Method

Dependent of regulatory issues

Further standardisation: which to standardise?

Important benefits already in place

STATE OF THE ARTEVOLUTION

2.1 ERTMS Investment Costs (example)

ERTMS – Level 1 Limited Supervision Savings:

• No need to replace existing Interlockings• Trackside Cabling• Installation and Commissioning• Safety Approval process• Engineering efforts

S1 S3 S4

2.2 ERTMS. Other Life Cycle Costs

Maintenance costs mostly related to track equipment.• Maintenance

• Upgrading

• Obsolescence

Limitation of changes in TSIsBackward compatibility policies

Electronics HW obsolescence

Other Information & Communication Technologies

Strong commitment to manage the long term lifecycle issues

2.3 Dependency on specific vendors

• ERTMS has the higher degree of standardisation ever achieved in

Signalling Systems

• ERTMS interoperability solves the inter-dependency between

infrastructure and OBU vendors.

• Multi-vendor offer

• But ERTMS is a part of the complete Signalling System

• Most of the dependencies related to underlying national signalling

system

2.4 Compliance to specific Operational Rules

• This accounts for important Engineering Efforts. And Costs!

• Harmonise, Simplify the Operational Rules and decrease the exceptions

• This is mostly out of the control of Signalling System Vendors.

• Some ERA activities focussed on this matter, with the support of vendors (Unisig)

2.5 Decrease project completion time/delays

Some common causes of long timelines and delays:• Iterations of the project development lifecycle• Engineering efforts• Huge testing effort made on-site• Time-consuming Safety approvals

ERTMS advantages:• Standardised System• Stable, consolidated specifications• Defined Test cases / procedures

To be improved:• Factory / Lab Testing to replace most of on-site tests• Harmonisation of operational rules

2.6 Achieving operational benefits from ERTMS

Already demonstrated in real implementations:• Interoperability• Capacity• Punctuality• Incident recovery• Energy efficiency

Further improvements to be achieved by means of:• Integration of ATO within ERTMS• Improvement of Traffic Management Systems

3. Conclusions

3. Conclusions

• ERTMS currently offers important benefits according to customer’s demands and expectations. Benefits are also for “Final customers” as passengers and train drivers

• Improvements are being tackled, in different stages of development. Shift2Rail being a key driver.

• Stability of the standard must be compatible with future improvements to guarantee the benefits of the incurred investments

www.cafsignalling.com

Thank you!