1. Concrete Maintenance Ties – Interspersal in Existing Wood Track AusRAIL PLUS 2003

2. AUSRAIL 2003 Concrete Maintenance Replacement Ties (MRT) - Development Summary Australia United States

3. AUSRAIL 2003 MRT - Development Summary Australia  Gunning, NSW  September 1999  6 MGT  40 mph mixed freight (64 kph)  45 mph passenger (70 kph)  6 degree curve

4. AUSRAIL 2003 MRT - Development Summary Gunning, NSW  24 inch (600mm) tie spacing  1,000 ties  1:4 pattern  Pandrol e-clip

5. AUSRAIL 2003 MRT - Development Summary Australia  Thirroul, NSW  August, 2001  10 - 12 MGT  5,000 MRT  45 mph passenger (70 kph)  45 mph freight and light coal (70 kph)  25 ton max. axle loads

6. AUSRAIL 2003 MRT - Development Summary Thirroul  24 inch spacing (600 mm)  5,000 ties  1:4 pattern in tangent  1:2 pattern in curves  Pandrol e-clip

7. AUSRAIL 2003 Development Summary - US Field Tests US Field Tests  TTCI January, 2001 Passed 105 MGT, October, 2002 40 mph 39 ton axle load 20 inch tie spacing (508 mm)

8. AUSRAIL 2003 Development Summary - US Field Tests BNSF  Clarendon, TX  8’3” Prototype  52 MGT  49 mph  20 inch tie spacing  50 MRT  Varied Shoulder Spacing

9. AUSRAIL 2003 Maintenance Replacement Tie Fastening Components  Determining Role of each component Rail Base Position “Force” or Hold Gauge Accommodate Field Variance 5 ½” and 6” Rail Base Gauge  Airboss and Pandrol Safelok  US vs. Australia

10. AUSRAIL 2003

11. Maintenance Replacement Tie US Tie Design  Cross Tie 7” x 9” x 8’-6” 525 lbs.

12. AUSRAIL 2003 Maintenance Replacement Tie Tie Design

13. AUSRAIL 2003 Maintenance Replacement Tie Tie Design

14. AUSRAIL 2003 Maintenance Replacement Tie Tie Design

15. AUSRAIL 2003 Maintenance Replacement Tie Finite Element Analysis (FEA) Model  Static Loading  Varied Axle Loading Positions  Varied Interspersal Patterns  Varied Track Modulus 3,000 lbs/in/in (21.4 MN/m/m) 6,000 lbs/in/in (42.8 MN/m/m)

16. AUSRAIL 2003 Maintenance Replacement Tie FEA Model  Calculated Deflections (mm)  Straddled Axle Load  1:5 Pattern

17. AUSRAIL 2003 BNSF Test Installations Goals  Maximize Challenges  Medium Tonnage  Non Critical Route  Test Feasibility of Installation with Conventional Tie Gangs  Provide Opportunity to Observe Performance in more Realistic Conditions  Provide Opportunity for more Accurate Comparison between MRT and Wood Ties

18. AUSRAIL 2003 BNSF Test Installations Sites Chosen  Centralia, Illinois November, 2002 10,000 MRT Traditional Tie Gang  Lafayette, Louisiana June, 2003 10,000 MRT THS 2000 Mechanized Tie Gang

19. AUSRAIL 2003 BNSF Test Installations Centralia, Illinois Beardstown Subdivision 23 MGT 50 mph, predominant coal train 20 year avg. wood tie life Subgrade problems – poor drainage

20. AUSRAIL 2003 BNSF Test Installations - Centralia

21. AUSRAIL 2003 BNSF Test Installations - Centralia

22. AUSRAIL 2003 BNSF Test Installations - Centralia

23. AUSRAIL 2003 BNSF Test Installations - Centralia

24. AUSRAIL 2003 BNSF Test Installations - Centralia

25. AUSRAIL 2003 BNSF Test Installations - Centralia

26. AUSRAIL 2003 BNSF Test Installations - Centralia Evaluation  Installation Rate  Material Distribution  Track surfacing Mud Spots  Installation “Patterns”

27. AUSRAIL 2003 BNSF Test Installations - Centralia

28. AUSRAIL 2003 BNSF Test Installations Lafayette, Louisiana Lafayette Subdivision 22 MGT 60 mph, mixed freight 70 mph, AMTRAK 10-15 year avg. wood tie life Tropical Climate

29. AUSRAIL 2003 BNSF Test Installations – Lafayette

30. AUSRAIL 2003 BNSF Test Installations – Lafayette

31. AUSRAIL 2003 BNSF Test Installations – Lafayette

32. AUSRAIL 2003 BNSF Test Installations – Lafayette

33. AUSRAIL 2003 BNSF Test Installations – Lafayette

34. AUSRAIL 2003 BNSF Test Installations – Lafayette

35. AUSRAIL 2003 BNSF Test Installations – Lafayette

36. AUSRAIL 2003 BNSF Test Installations – Lafayette

37. AUSRAIL 2003 BNSF Test Installations – Lafayette Evaluation  Installation Rate  Material Distribution  Installation of Fastening Components

38. AUSRAIL 2003 BNSF Test Installations – Lafayette

39. AUSRAIL 2003 BNSF Test Installations – Lafayette

40. AUSRAIL 2003 BNSF Test Installations – Lafayette

41. AUSRAIL 2003 Net Present Value (NPV) Study Interest Rate Tie Life Projection Tie Density/Mile Daily Gang Production Wood vs. Concrete Costs  Transportation/Delivery  Tie Gang Equipment  Tie Gang Manpower  Unit Tie including Fastenings Credit for Scrap Materials

42. AUSRAIL 2003 Net Present Value (NPV) Study Assumptions:  One mile of track with tie spacing at approximately 20 inches (508 mm).  1/3 of wood ties, in one mile of track, are replaced every 7 years. After three cycles, or 14 years, all ties are replaced.  Installation of MRT will extend following replacement cycle by 2 years. YearWoodMRT 01067 7 9 141067 191067

43. AUSRAIL 2003 Concrete Maintenance Ties – Interspersal in Existing Wood Track Thank You