Pavement Type Selection Not a Black or White Issue. Marvin Traylor

Transcription

1 1 Pavement Type Selection Not a Black or White Issue Marvin Traylor

2 2 A Modern Life Cycle Cost Analysis Initial Costs Out Year Costs User Delay Costs

3 3 Score Card PCC HMA Initial Costs Out Year Costs User Delay Costs

4 4

5 5

6 6

7 7 Breakout by Majority Pavement Type Interstate System Asphalt - 32 states Concrete - 18 states Data source: US DOT, FHWA, Highway Statistics, Section V, Type of Surface, Interstate Rural and Urban

8 8 Score Card PCC HMA Initial Costs Out Year Costs User Delay Costs

9 Initial Costs Out Year Costs User Delay Costs PCC HMA 9 Thickness X Sections Material Specifications Details

10 Initial Costs Out Year Costs User Delay Costs PCC HMA 10 Time Horizon Distress Predictions Repair Strategies & Costs Reconstruction Considerations

11 Initial Costs Out Year Costs User Delay Costs PCC HMA 11 Distress/Repair Predictions Traffic Modeling Unit Costs/Vehicle/Hour Not My Money!

12 Illinois Selection History 12

13 13 Illinois Selection History

14 14 Illinois Selection History No Equivalents, No LCCA All White

15 15 Illinois Selection History No Equivalents, No LCCA All White

16 16 Illinois Selection History No Equivalents, No LCCA All White AASHO Equivalents

17 AASHO Equivalents Stone Concrete

18 18 Illinois Selection History No Equivalents, No LCCA All White AASHO Equivalents, LCCA Still All White

19 19 Illinois Selection History No Equivalents, No LCCA All White AASHO Equivalents, LCCA Still All White Present

20 20 Illinois Selection History No Equivalents, No LCCA All White AASHO Equivalents, LCCA Still All White Present Mechanistic Equivalents

21 Mechanistic Equivalents Concrete LIME MODIFIED SOIL LIME MODIFIED SOIL

22 22 Illinois Selection History No Equivalents, No LCCA All White AASHO Equivalents, LCCA Still All White Present Mechanistic Equivalents, New LCCA 50% White

23 State System 23 Design & Environment Manual Chapter 54

24 24 Score Card PCC HMA Initial Costs Out Year Costs User Delay Costs

25 IDOT Equivalents 20 Year Thickness Designs 25 Trucks/Day HMA PCC

26 26 Score Card PCC HMA Initial Costs Out Year Costs User Delay Costs

27 Year PCC Cost 0 $ $ $ $ Slabjack & Diamond Grind $ $ $ $ $.31 TOTAL $

28 Year HMA Light Traffic Cost 0 $ $ $ $ Mill & Overlay $ $ $ $ $.31 TOTAL $

29 Year HMA Heavy Traffic Cost 0 $ Mill & Overlay $ $.74 Mill & Overlay $ 15 $ Mill & Overlay $ $.48 Mill & Overlay $ 30 $ $ $.31 TOTAL $

30 30 Score Card PCC HMA Initial Costs Out Year Costs User Delay Costs

31 31 Net Result Truck Traffic Light Medium (1,500) Heavy Winner HMA 10% Committee PCC

32 32 IDOT s Selection Process Now Under Review Thickness Design Distress & Repair Strategies Rutting Penalty Reconstruction Costs Rubblization/PCC Overlay User Delays

33 33 IDOT s Selection Process Now Under Review Thickness Design Distress & Repair Strategies Rutting Penalty Reconstruction Costs Rubblization/PCC Overlay User Delays

34 34 Fatigue Theory High Strain = Short Life Low Strain = Long Life Fatigue Life

35 35 Fatigue-Based Thickness TF Microstrain Thickness TF1 = 200 Trucks/Day

36 36 Fatigue Theory for Thick Pavements High Strain = Short Life Low Strain = Unlimited Life Unlimited Fatigue Life 70 Fatigue Life

37 37 Fatigue-Based Thickness TF Microstrain Thickness TF1 = 200 Trucks/Day

38 38 IDOT s Selection Process Now Under Review Thickness Design Distress & Repair Strategies Rutting Penalty Reconstruction Costs Rubblization/PCC Overlay User Delays

39 Eventual Distress 39

40 40

41 41 IDOT s Selection Process Now Under Review Thickness Design Distress & Repair Strategies Rutting Penalty Reconstruction Costs Rubblization/PCC Overlay User Delays

42 Typical Rut Curve 42

43 43 IDOT s Selection Process Now Under Review Thickness Design Distress & Repair Strategies Rutting Penalty Reconstruction Costs Rubblization/PCC Overlay User Delays

44 44 Kansas Interstate Study

45 45 Interstate/Kansas Turnpike PCC Pavement (184 miles) HMA Pavement (244 miles)

46 Total Expenditures Per 4-Lane Mile Per Year, HMA Pavements, I HMA

47 Total Expenditures Per 4-Lane Mile Per Year, PCC Pavements, I PCC

48 Average Life Cycle Cost 48

49 49 IDOT s Selection Process Now Under Review Thickness Design Distress & Repair Strategies Rutting Penalty Reconstruction Costs Rubblization/PCC Overlay User Delays

50 50

51 51 IDOT s Selection Process Now Under Review Thickness Design Distress & Repair Strategies Rutting Penalty Reconstruction Costs Rubblization/PCC Overlay User Delays

52 52

53 53 Dollars & Days 30 Year Concrete Perpetual Pavement Year Activity $ (millions) Days Year Activity $ (millions) Days 0 New Construction Patch/Overlay Patch/Overlay Reconstruction Patch/Overlay Patch/Overlay Reconstruction New Construction Mill/Overlay Mill/Overlay Mill/Overlay Mill/Overlay Mill/Overlay TOTAL $ TOTAL $

54 Local System 54 Local Roads Manual Chapter 37

55 55 IDOT s Mechanistic Design for Local Roads and Streets Rigid Jointed Pavement Conventional Flexible Pavement Full Depth Flexible Pavement

56 56 Local Road Equivalents Trucks/Day HMA PCC

57 57 Local Preference for MFT Projects No LCCA Required Alternate Bids Type Bids

58 Stanford Avenue 58

59 59 Alternate Pavements 13 HMA 8 PCC 4 HMA Subbase 12 Modified Soil

60 60 Engineer s Estimate (Total Project) WHITE BLACK $2,445,407 $2,331,134 5% Difference

61 61 Actual Bids (Total Project) WHITE BLACK FREESEN $2,114,322 $1,599,532 FLATT $1,599,992 SANKEY $1,772,477 MERRILL $1,779,209 CALHOUN $2,343,458 32% Difference

62 Nascar Tracks 62 Atlanta Motor Speedway Autodromo Hermanos Rodriguez Bristol Motor Speedway California Speedway Chicagoland Speedway Darlington Raceway Daytona International Speedway Dover International Speedway Gateway International Raceway Homestead-Miami Speedway Indianapolis Motor Speedway Indianapolis Raceway Park Infineon Raceway Kansas Speedway Kentucky Speedway Las Vegas Motor Speedway Lowe s Motor Speedway Mansfield Motorsports Speedway Martinsville Speedway Memphis Motorsports Park Michigan International Speedway The Milwaukee Mile Nashville Superspeedway Nazareth Speedway New Hampshire International Speedway Phoenix International Raceway Pikes Peak International Raceway Pocono Raceway Richmond International Raceway Talladega Superspeedway Texas Motor Speedway Watkins Glen International

63 Nascar Tracks 63 Atlanta Motor Speedway Autodromo Hermanos Rodriguez Bristol Motor Speedway California Speedway Chicagoland Speedway Darlington Raceway Daytona International Speedway Dover International Speedway Gateway International Raceway Homestead-Miami Speedway Indianapolis Motor Speedway Indianapolis Raceway Park Infineon Raceway Kansas Speedway Kentucky Speedway Las Vegas Motor Speedway Lowe s Motor Speedway Mansfield Motorsports Speedway Martinsville Speedway Memphis Motorsports Park Michigan International Speedway The Milwaukee Mile Nashville Superspeedway Nazareth Speedway New Hampshire International Speedway Phoenix International Raceway Pikes Peak International Raceway Pocono Raceway Richmond International Raceway Talladega Superspeedway Texas Motor Speedway Watkins Glen International

64 Marvin Traylor 64