1. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 Importance of Infill Functionality for the Performance Behaviour and Safety

2. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 is designed for existing lines with subsisting signalling infrastructure for mixed traffic operation to achieve interoperability ETCS Level 1

3. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 Possible utilizations ETCS L1 pure ETCS L1 with infill –by means of EUROBALISES –by means of EUROLOOP –by means of EUROBALISES & EUROLOOP –by means of GSM-R

4. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 Possible utilizations ETCS L1 pure SvL release speed braking distance braking distance

5. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 Possible utilizations ETCS L1 pure advantagedisadvantage very simple implementation decrease of operational performance low costs energy optimized driving is not possible necessary release speed leads to decrease of safety cab signalling not useful

6. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 Possible utilizations ETCS L1 infill - by means of EUROBALISES SvL release speed braking distance braking distance

7. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 advantagedisadvantage simple implementationcosts higher than L1 pure good operational performance more interfaces to signals / interlockings (implementation afford) energy optimised driving is possible necessary release speed leads to decrease of safety if distance to SvL is short cab signalling is possible ETCS Level 1 Possible utilizations ETCS L1 infill - by means of EUROBALISES

8. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 Possible utilizations ETCS L1 infill - by means of EUROLOOP SvL braking distance braking distance

9. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 advantagedisadvantage good operational performance (if loop length is equal to service brake distance) If loops shorter than service brake distance  less operational performance energy optimised driving is possible Very high costs with long loops (equal to service brake distance) cab signalling is possible high implementation afford for loop cable no release speed necessary, high safety performance if distance to SvL is short Same amount of interfaces to signals / interlockings as L1 pure ETCS Level 1 Possible utilizations ETCS L1 infill - by means of EUROLOOP

10. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 Possible utilizations ETCS L1 infill - by means of EUROBALISES & EUROLOOP SvL braking distance braking distance

11. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 advantagedisadvantage high operational performance (nearly L2) costs higher than L1 with BALISE infill energy optimised driving is possible more interfaces to signals / interlockings (implementation afford) cab signalling is possible no release speed necessary, high safety performance if distance to SvL is short good cost benefit ratio ETCS Level 1 Possible utilizations ETCS L1 infill - by means of BALISES & LOOP

12. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 Possible utilizations ETCS L1 infill - by means of GSM-R SvL braking distance braking distance

13. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 advantagedisadvantage high operational performance (nearly L2) no solution available up to now energy optimised driving is possibleGSM-R availability essentially cab signalling is possiblenot well specified up to now no release speed necessary, high safety performance if distance to SvL is short ETCS Level 1 Possible utilizations ETCS L1 infill - by means of GSM-R

14. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 full supervision ~10 m SvL Vrel = 0 Override authority mode (written order) ETCS Level 1 Safety constraints ETCS L1 infill (by Euroloop)

15. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 Study RWTH Aachen University Influence of automatic train control components with an infill functionality on capacity commissioned by UIC The study examines the effects of automatic train control components with infill functionality on a lines capacity. Forming the basis for studies is a harmonised blocking time model of the type prescribed in UIC Leaflet 406. The ETCS L1 system operating with one or two optimally positioned infill balises is almost as efficient as a system with continuous information transmission. short infill loops in addition to infill balises are virtually equal with total infill in their effect on capacity.

16. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 ETCS L1 with infill – optimizing operational performance V=0 SBI 4/9 SBI v max EBI1/9 SBI v=160 v=80

17. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 ETCS Level 1 ETCS L1 with loop-infill – additional operational benefit SvL

18. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 Practical experience of the Vienna – Budapest project ETCS L1 with intelligent infill configuration offers reasonable capacity complex switch- and signal configuration in stations requires interfaces from the interlocking to the LEU (unambiguous route information is necessary) The (actual) braking model leads to a very low approaching speed to signals (10 – 3 km/h for the last 150m)  Improvement by the specs is necessary Cab signalling offers a differential speed profile depending on the relevant switches of a route set.

19. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 Next steps ETCS L1 on the „Donaukorridor“ –Vienna – Salzburg; Wels – Passau –Contracted 12/2005 –Set in Operation 2008 Mistel- bach BREGENZ Feldkirch (Buchs) INNSBRUCK (Brennero / Brenner) Kufstein (Freilassing) (Rosenheim) SALZBURG Wörgl Bischofshofen Schwarzach SV. Selzthal St. Michael Bruck M. GRAZ Spielfeld Str. Villac h KLAGENFURT St. Veith G. Stainach/ Irdning LINZ Wels Attnang P. (Passau) St.Valentin WIEN St. PÖLTEN Tulln Hollabrun n Hohenau Wiener Neustadt Wampers- dorf Rosenbach (Tarvisio) Arnoldstein Sum- merau Amstetten (Breclav) (Horni D.) (Maribor) L1 lines planned L1 test line LZB line L1 contracted Dec 2005

20. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 Conclusion ETCS L1 with infill offers increase of safety high operational benefit a good cost benefit ratio the possibility for ETCS migration with all existing interlocking systems the possibility for cab signalling the possibility for energy optimized driving

21. UIC ERTMS Conference 2006 Importance of infill functionality for the performance behavior and safety ÖBB Infrastruktur Betrieb AG - Netztechnik August Zierl - 05.04.2006 Thank you for your attention