Project-specific maintenance: The way forward? Ronald Bresser, 18 March 2015, Utrecht

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1 Project-specific maintenance: The way forward? Ronald Bresser, 18 March 2015, Utrecht

2 Agenda Maintenance main issues ERTMS maintenance in The Netherlands Advantages and disadvantages d of today s maintenance practice Opportunities to improve maintenance processes Conclusions

3 Maintenance Main issues Are harmonised maintenance processes possible, when equipment from multiple suppliers has been installed? Can we share information and knowledge to do effective maintenance and repair? Is it possible to maintain ERTMS without Is it possible to maintain ERTMS without a good second-line maintenance team?

4 ERTMS maintenance in The Netherlands Project-specific maintenance because: Isolated ERTMS corridors Each corridor has one supplier The ERTMS implementations are not harmonised No need for shared knowledge between corridors (current situation)

5 Current maintenance practice Advantages and disadvantages Advantages Supplier has extensive knowledge of his own system Best analysis of problems within system boundaries Possibility of efficiency in maintenance (MTTR, ) Less need for training of maintenance staff from third parties Disadvantages In-depth knowledge only available at system supplier Supplier does not have a complete overview of interfaces between ERTMS and other systems No standards for maintenance solutions No independent safety check after maintenance

6 Question about current practice A ll i t i di th Are all maintenance issues covered in the current practice?

7 Current maintenance practice Preventive, corrective and problem analysis Maintenance Preventive Corrective Easy to find errors Corrective Hard to find errors In-depth problem analysis Organized Planned maintenance (contractor) First line support 24/7 Back up with a second line support (contractor) tor) Second line support Back up by for overview (contractor) Third line maintenance support (organized by infra provider)

8 Corrective maintenance Follow up sequence

9 Analysis of integrated problems Case Problem: system failure causes the train to stop. Which part of the system failed? The ERTMS on-board equipment? The ERTMS wayside equipment? The interlocking? The dispatching system? An incorrect operation by the driver?... The system is more complex than in the past! Can this be analysed by a first-line maintenance engineer?

10 First-line analysis The first-line maintenance engineer has only knowledge about his own subsystem He is not involved in the primary analysis to allocate the problem to a subsystem

11 Maintenance analysis Example Too complex for first-line maintenance engineer Not only ERTMS involved Find the single hardware failure This is a second-line analysis

12 Second-line integrated analysis Prerequisites Good report of the failure by driver and dispatcher Define a good decision method, so the first-line maintenance engineer can decide when a failure must be analysed by the second-line maintenance Second-line support must have an overview of the subsystem interfaces Second-line support can easily contact the support of other subsystems Access to logging data (readable format) of all subsystems Access to the as-built data

13 Second-line integrated analysis competences Approach the problem with an integrated system view in order to find the optimal solution Work together Share knowledge Be open to other people s ideas Know the scope of the maintenance contract, but be aware that analysis will not end at the border

14 Conclusions Are harmonised maintenance processes possible, when equipment from multiple suppliers has been installed? Yes, for doing the work in the field No, for maintaining i i the equipment of a specific supplier Yes, on a higher level the need for a harmonised analysis approach exists Can we share information and knowledge to do effective maintenance and repair? It is a must in order to perform efficient second-line analyses

15 Conclusions Is it possible to maintain ERTMS without a good second-line maintenance team? No

16 Project-specific maintenance: the way forward? Partly yes, because maintenance of components will often be project-specific Partly no, because maintenance processes can be and should be standardized across projects Ronald Bresser