1 / 47

Preservation Projects 2014-2019 Proposed Highway Improvement program

Preservation Projects 2014-2019 Proposed Highway Improvement program. Paula J. Trigg, County Engineer Public Works and Transportation Committee April 30, 2014. Presentation Schedule: 2014-2019 5-year Highway Improvement Program. 2014-2019 Five Year Highway Improvement Program.

markku
Download Presentation

Preservation Projects 2014-2019 Proposed Highway Improvement program

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Preservation Projects2014-2019 Proposed Highway Improvement program Paula J. Trigg, County Engineer Public Works and Transportation Committee April 30, 2014

  2. Presentation Schedule:2014-2019 5-year Highway Improvement Program

  3. 2014-2019 Five Year Highway Improvement Program LCDOT’s management philosophy sets system priorities: • Preservation • Modernization • Expansion

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

  5. Developing the Project Set ARGUS Pavement Management System Today is an overview of ARGUS

  6. 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

  7. Pavement Management System Components: County highway database Automated pavement testing Repair strategies with costs Pavement aging prediction Optimization program

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

  9. Automated Pavement Testing About 870lane miles in system County is divided into quadrants One quadrant is tested each year Entire county is covered in four years

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

  11. Second: Dynaflect deflection tester measures strength and condition of… Pavement Subgrade Automated Pavement Testing

  12. Repair Strategies and Costs Two Groups of Roadway Priorities: (starting with 2010-2014 program analysis) Four lane roads: 53miles Two lane roads: 247miles

  13. Repair Strategies and Costs Microsurfacing Five resurfacing strategies Three “3R” strategies Three reconstruction strategies Associated per-square-yard costs

  14. Pavement Aging Prediction Costs

  15. 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

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

  17. LCDOT ARGUS results Started in 1986 System condition has improved from a rating of68to 84 (on 100 scale) Area of backlog and failing pavement has beenreducedfrom 55% to 9%

  18. 2014 – 2019 Proposed Highway Improvement Program The following charts to appear in Section 2 Preservation Projects

  19. Traffic Volumes

  20. Definitions of Pavement Condition Good (80 – 100)Sections may require crack sealing or a thin overlay. These sections do not require immediate attention. Pavement in this category is generally less than 12 years old. Satisfactory (70-79)Sections may require resurfacing or other rehabilitation in the near future. Pavement is generally 12-14 years old. Failing (60-69)Will require some type of improvement in the near future to preserve the usability of the surface and avoid the need for reconstruction. This is pavement that is approaching the end of its useable life. Backlog (10-59)May require surface and base course reconstruction to restore roadway serviceability. Some may require total reconstruction, including reconstruction of the subgrade. Pavement in this category is generally more than 15 years old.

  21. Current Pavement Condition = 84

  22. Pavement Conditions

  23. ARGUS optimizes improvements

  24. Multiple treatments evaluated

  25. System Recommendations2015 - 2019

  26. System Preservation Projects2015-2019

  27. 2015 Projects

  28. 2016 Projects

  29. 2017 Projects

  30. 2018 Projects

  31. 2019 Projects

  32. Keeping Tabs on the System:Asset Inventories Pavement and bike facilities Guardrail, bridges and railroad crossings Signals and signs Drainage and stormwater facilities More…

  33. Program resurfaces about15 miles per year

  34. Many roads initially built in the 1950s

  35. Inventory: Lane Miles

  36. Inventory: Culverts/conditions

  37. Age of Highway Bridges

  38. Age of Bridge Deck Surface

  39. Age of Bike and Pedestrian Bridges

  40. Bridges: Sufficiency Ratings

  41. StormwaterManagement facilities

  42. By the NumbersInventory: Non-Pavement Assets

  43. Inventory: Signs *signs installed and maintained by LCDOT | April 2014

  44. Inventory: Railroad Crossings

  45. Inventory: Signal Controllers

  46. Priority One: Preservation • Developing a set of projects • ARGUS Pavement Management Software • Keeping tabs on the system • Asset Inventories

  47. Presentation Schedule:2014-2019 5-year Highway Improvement Program

More Related