1. LTPP Program Presented to the ACPA Professors Workshop Skokie, IL June 19, 2008 Long-Term Pavement Performance Program

2. LTPP Program Fact about the LTPP Program LTPP/ASCE Data Analysis Contest Key Features of DataPave Online Sample Data Extraction Other LTPP Products Scope of Presentation

3. LTPP Program 20 year program Collects pavement performance data Aprox. 1,914 research test sections throughout the US and Canada Joint FHWA, State DOT, Provincial DOT cooperative program FACTS about the Long-Term Pavement Performance Program(LTPP)

4. LTPP Development   Strategic Transportation Research Study  LTPP Planning  Strategic Highway Research Program (LTPP: $50 Million) 1987-1992 1985-1987 1984 LTPP Program

5. Original Objectives Evaluate existing design methods. Develop improved design methodologies and strategies for the rehabilitation of existing pavements. Help support the develop of improved design equations for new and reconstructed pavements. LTPP Program

6. Determine the effects of loading, environment, material properties and variability, construction quality, and maintenance levels on pavement distress and performance. Determine the effects of specific design features on pavement performance. Establish a national long-term database to support SHRP’s objectives and to meet the future needs of the highway industry. Objectives Continued… LTPP Program

7. GPS-1Asphalt Concrete (AC) on Granular Base GPS-2AC on Bound Base GPS-3Jointed Plain Concrete Pavement GPS-4Jointed Reinforced Concrete Pavement GPS-5Continuously Reinforced Concrete Pavement GPS-6AExisting AC Overlay on AC Pavements GPS-6BNew AC Overlay on AC Pavements GPS-7AExisting AC Overlay on Portland Cement Concrete (PCC) Pavements GPS-7BNew AC Overlay on PCC Pavements GPS-9Unbounded PCC Overlays on PCC Pavements General Pavement Studies (GPS) LTPP Program

8. Focus on most commonly used pavement designs One 500 foot section per location Primary Factors Subgrade: fine & course Traffic: medium & heavy Temp: freeze and non-freeze Moistures: wet and dry Secondary Factors AC thickness AC stiffness SN of base and subgrade PCC thickness Joint spacing GPS continued…. LTPP Program

9. General Pavement Studies (GPS) Approximately 652 sections LTPP Program

10. SPS-1Strategic Study of Structural Factors for Flexible Pavements SPS-2 Strategic Study of Structural Factors for Rigid Pavements SPS-3Preventative Maintenance Effective for Flexible Pavements SPS-4Preventative Maintenance Effective for Rigid Pavements SPS-5Rehabilitation of AC Pavements SPS-6Rehabilitation of Jointed PCC Pavements SPS-7Bonded PCC Overlays on Concrete Pavements SPS-8 Study of Environmental Effects in the Absence of Heavy Loads SPS-9Validation of SHRP Asphalt Specification and Mix Design (Superpave) Specific Pavement Studies (SPS) LTPP Program

11. Focus on certain pavement engineering factors Multiple 500 feet sections per location Primary Factors Subgrade: fine & course Traffic: medium & heavy Temp: freeze and non-freeze Moistures: wet and dry Secondary Factors AC drainage - yes, no AC thickness AC base type and thickness PCCP drainage- yes, no PCC strength and thickness Lane width Base type SPS continued…. LTPP Program

12. Specific Pavement Studies (SPS) LTPP Program Approximately 1,262 sections

13. Dry Freeze Wet Freeze Dry No- Freeze Wet No- Freeze LTPP Program

15. Pavement Distress LTPP Program

16. Profile Data Smoothness LTPP Program

17. FWD Structural Capacity LTPP Program

18. Traffic Loads Weigh-In-Motion (WIM) LTPP Program

19. Climatic Data Environmental Effects LTPP Program

20. LTPP Data Collection Climate Traffic MaterialProperties Pavement Structure Pavement condition LTPP Program

21. Fact about the LTPP Program LTPP/ASCE Data Analysis Contest Key Features of DataPave Online Sample Data Extraction Other LTPP Products Scope of Presentation

22. LTPP Program To work with the next generation of pavement engineers. To work closely with universities, where future research is being conducted. Why a contest ?

23. LTPP Program In 1998, LTPP/ASCE developed and conducted the first “International LTPP Data Analysis Contest” Main catalyst “DataPave” Since 1998 the contest has been conducted three additional times

24. LTPP Program Usefulness of product and potential benefit to end users, Originality of concept, demonstrated use of the LTPP database, Organization of paper, and presentation (including clarity and style). Projects are evaluated based on ….

25. LTPP Program Category 1, Undergraduate Students (Individual or team entry) Category 2, Graduate Students (Individual or team entry) Category 3, Partnership Category 4, Curriculum Segmented into four categories ….

26. LTPP Program Adoption of LTPP in the Classroom! –Incorporate LTPP data elements provide real-world applications –Professors are seeking more meaningful assignments for students and need data to support assignments –LTPP can provide much needed data

27. LTPP Program Professor Case Study From Contest Dr. Susan Tighe, University of Waterlou USING LTPP FOR EDUCATING TOMORROW'S ENGINEER, 2003 First Place, CURRICULUM CATEGORY Drs. Neeraj Buch and Karim Chatti –The Use of the LTPP Database in the Pavement Engineering Curriculum at Michigan State University, 2002 First Place, Curriculum CATEGORY Dr. Shelley Stoffels, Penn State University

28. LTPP Program Fact about the LTPP Program LTPP/ASCE Data Analysis Contest Key Features of DataPave Online Sample Data Extraction Other LTPP Products Scope of Presentation

29. LTPP Program What's new (Database release announcement) Table/Field Navigator Table Export Key Features of DataPave online

32. LTPP Program What's new (Database release announcement) Table/Field Navigator Table Export Key Features of DataPave online

33. LTPP Database… MODULES Climatic General Inventory Maintenance Monitoring Rehabilitation SMP SPS (10) Traffic TABLES Deflection Profile Friction Distress etc ELEMENTS Date Time Temperature Individual data elements LTPP Program

35. What's new (Database release announcement) Table/Field Navigator Table Export Key Features of DataPave online

37. LTPP Program Background of the LTPP Program LTPP/ASCE Data Analysis Contest Key Features of DataPave Online Sample Data Extraction Other LTPP Products Scope of Presentation

38. LTPP Program Performance data –Inventory data (layer) –Traffic data –Materials testing –Profile Sample Data Extraction

39. 54-4003 54-4004 Layer data

40. LTPP Program Extracted data Extracted data

41. 54-4003 54-4004 Traffic Data

42. LTPP Program Extracted data Extracted data

43. 54-4003 54-4004 Testing Data

44. 1-0101 1-0102 1-0103 Testing Data

45. LTPP Program Extracted data Extracted data

46. LTPP Program Extracted data Extracted data

47. 1-0101 1-0102 1-0103 Profile Data

48. 54-4003 54-4004 Faulting Data

49. LTPP Program Extracted data Extracted data

50. LTPP Program Extracted data Extracted data

51. LTPP Program Background of the LTPP Program LTPP/ASCE Data Analysis Contest Key Features of DataPave Online Sample Data Extraction Other LTPP Products Scope of Presentation

52. LTPP Program LTPP Pavements Online –(1998 AASHTO supplement) LTPP WIM Cost DiVa Online Other Products online –LTPPBind 2.1 & 3.1 beta –LTPP faultmeter plans and spec’s –Other

53. LTPP Program www.fhwa.dot.gov/pavement/ltpp/datapave.cfm Federal Highway Administration Antonio Nieves Torres Tel. 202-493-3074 antonio.nieves@fhwa.dot.gov Dr. Karim Chatti Michigan State University Tel. (517) 355-6534 chatti@egr.msu.edu Additional information on the contest ….

54. Additional information on LTPP products…. Antonio Nieves Tel. 202-493-3074 antonio.nieves@fhwa.dot.gov North Central/Western Regions Mike Moravec Tel. 410-962-5623 mike.moravec@fhwa.dot.gov North Atlantic/ Southern Regions LTPP Program

55. Thank you ! www.fhwa.dot.gov/pavement/ltpp/index.cfmwww.datapave.com LTPP Program