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2011-2016 Proposed Highway Improvement Program

2011-2016 Proposed Highway Improvement Program. Public Works and Transportation Committee April 27, 2011. 2011-2016 Five Year Highway Improvement Program. Management philosophy sets system priorities : Preservation Modernization Expansion. Priority One: Preservation.

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2011-2016 Proposed Highway Improvement Program

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  1. 2011-2016Proposed Highway Improvement Program Public Works and Transportation Committee April 27, 2011

  2. 2011-2016 Five Year Highway Improvement Program • Management philosophy sets system priorities: • Preservation • Modernization • Expansion

  3. Priority One: Preservation • Developing a set of projects • ARGUS Pavement Management Software • Keeping tabs on the system • Asset Inventories • $1.6 billion to build

  4. Developing the Project Set • ARGUS Pavement Management System…… • ……Today is an introduction to ARGUS

  5. Pavement Management Goal Make cost effective decisions For given 5 year budget levels: • Where repairs are needed • What repair strategies to use • When the repairs should be done

  6. Pavement ManagementSystem Components: • County highway database • Automated pavement testing • Repair strategies with costs • Pavement aging prediction • Optimization program

  7. County Highway Database Contains information on… • Surface type • Surface width • Section area • Traffic volumes • Percentage of trucks

  8. Automated Pavement Testing • About 848 lane miles in system • County is divided into quadrants • One quadrant is tested each year • Entire county is covered in four years

  9. Automated Pavement Testing First: Laser Road Surface Tester (RST) measures… • Cracking • Rutting • Ride quality

  10. Automated Pavement Testing Second:Dynaflect deflection tester measures… • Strength and condition of pavement • Strength and condition of subgrade

  11. Repair Strategies and Costs Two Groups of Roadway Priorities: (starting with 2012-2016 program analysis) • Four lane roads - 53 miles • Two lane roads - 242 miles

  12. Repair Strategies and Costs • Four resurfacing strategies • Three “3R” strategies • Three reconstruction strategies • Associated per-square-yard costs

  13. Pavement Aging Prediction Costs

  14. ARGUS Summary Pavement Management System does… • Assess the present condition of the system • Estimate future road conditions • Identify and rank road projects • Maximize the condition of the system within the given budget

  15. ARGUS Summary … Pavement Management System does not… • Replace professional judgment • Provide certain detailed project-specific information

  16. LCDOT ARGUS results • Started in 1986 • System condition has improved from a rating of 68to 78(on 100 scale) • Area of backlog and failing pavement has been reduced from 55% to 15%

  17. 2011 – 2016Proposed Highway Improvement Program The following charts to appear in Section 2 Preservation Projects

  18. 2011 Traffic Volumes

  19. Definitions of Pavement Condition

  20. Current Pavement Condition = 78

  21. 2011 Pavement Conditions

  22. ARGUS optimizes improvements

  23. Multiple treatments evaluated

  24. System Recommendations

  25. System Preservation Projects 2012-2016

  26. 2012 Projects

  27. 2013 Projects

  28. 2014 Projects

  29. 2015 Projects

  30. 2016 Projects

  31. Keeping Tabs on the System:Asset Inventories • Pavement and bike facilities, guardrail • Bridges and railroad crossings • Signals and signs • Drainage and stormwater facilities • More…

  32. Program resurfaces about 9 miles per year

  33. Many roads initially built in the 1950s

  34. Inventory: Lane Miles

  35. Age of Highway Bridges

  36. Age of Bridge Deck Surface

  37. Age of Bike and Pedestrian Bridges

  38. Bridges: Sufficiency Ratings

  39. Stormwater Management Facilities

  40. By the NumbersInventory: Non-Pavement Assets

  41. Inventory: Signs

  42. Inventory: Railroad Crossings

  43. Inventory: Signal Controllers

  44. Priority One: Preservation • Developing a set of projects • ARGUS Pavement Management Software • Keeping tabs on the system • Asset Inventories • Next Program Presentation: • Priority Two – System Modernization • Priority Three – System Expansion

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