The Township of Langley 2008  Pavement Management System Study Prepared by EBA Engineering Consultants Ltd.
Contents <ul><li>Project Background </li></ul><ul><li>Data Collection  </li></ul><ul><li>Road Network Present Conditions i...
Project Background <ul><li>Township of Langley’s Pavement Management History </li></ul><ul><li>Pavement Management System ...
Pavement Inventory <ul><li>Township of Langley has approximately 930 centreline km of road </li></ul><ul><li>(813 centreli...
Township of Langley’s Road Network Road Network Classification Provincial Highways MRN Routes Arterial Routes Collector Ro...
All Cracked Area (ACA) as a Measure of Pavement Condition 100% 30% V Poor 30% 10% Poor 10% 5% Fair 5% 1% Good 1% 0% V Good...
Data Collection Cracking = 0 - 1 % Preventative Maintenance (crack sealing) $1.70 - $3.00/m 2 Cracking = 1 - 10 % Overlay,...
Data Collection Cracking = 10 - 30% (Overlay, Grind and Patch) $30 - $40/m 2 Cracking > 30% (Replace Asphalt) $40 - $65/m 2
Cracking (ACA) on Major Roads – 2007/08 0 – 1% (V Good)  =  133 km  40% 1 – 5% (Good)  =  98 km  30% 5 – 10% (Fair)  =  42...
Recommended Funding vs Actual (major roads) <ul><li>Average Cracking in 2000 = 5.2% </li></ul><ul><li>Average Cracking in ...
Comparison to Other Agencies How does this compare to elsewhere in terms of Cracking ?? Using the same data collection / i...
Cracking (ACA) on MRN Roads 2005 0 – 1% (V Good)  = 43 km 1 – 5% (Good)  = 14 km 5 – 10% (Fair)  =  2 km 10 – 30% (Poor)  ...
Cracking (ACA) on Local Roads - 2008 0 – 1% (V Good)  = 156 km 1 – 5% (Good)  = 125 km 5 – 10% (Fair)  =  38 km 10 – 30% (...
Analysis Inputs Example Pavement Strategies (combinations of treatments) 13 Years 10 Years 20 Years
Analysis Inputs Using Life Cycle Cost Analysis Evaluated Several Strategies for Each Pavement Segment <ul><li>Strategy is ...
Analysis Results – Major Roads Deterioration 9% 16% 4% 6% 20% Cracking (ACA) % $2.0mill $3.0 mill $3.5 mill $4.0 mill $1.5...
Analysis Results – Local Roads Deterioration 4% 11% 15% Cracking (ACA) % $3.0 mill $3.5 mill $4.0 mill $2.5 mill Recommend...
Cracking (ACA) on Major & Local Roads 2009 - 2025 Predicted condition in 2009 - 2025 Major:  $2.0 million/ year Local:  $2...
Cracking (ACA) on Major & Local Roads - 2009 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2010 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2011 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2012 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2013 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2014 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2015 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2016 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2017 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2018 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2019 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2020 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2021 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2022 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2023 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2024 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads - 2025 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Cracking (ACA) on Major & Local Roads 2025 Predicted condition in 2025 Major & Local:  $500,000/ year Annual Spending (Do ...
Cracking (ACA) on Major & Local Roads - 2025 0 – 1%  (V Good) 1 – 5%  (Good) 5 – 10%  (Fair) 10 – 30%  (Poor) 30 – 100%  (...
Pavement Asset Value Pavement Type  Replacement  2008 Value  2018 Value   (Recommended Budget) MRN Roads  $  74 million  $...
 
For Discussion
Calculating Pavement Value Pavement value = Cost of Excavation and Compaction + cost of Subbase + cost of Base + cost of A...
With time and traffic, pavement layers deteriorate Failure Rutting Cracking
Calculating current pavement asset value cracking Original Pavement value  minus  the cost in any given year to restore th...
Pavement Asset Value <ul><li>Pavement Type  Length  Replacement  2008 Value </li></ul><ul><li>MRN Roads   59 km  $  74 mil...
Distress Prediction Modeling World Bank Pavement Performance - Distress Prediction Modeling <ul><li>Structure </li></ul><u...
Analysis Inputs Maintenance / Rehabilitation Treatments and Costs Used <ul><li>Treatment Unit Cost </li></ul><ul><li>Crack...
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Pavement Management System Presentation to Township of Langley Council, June 22, 2009

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A presentation on the state of Langley's roads from Gary St. Michel of EBA Engineering Consultants.

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Pavement Management System Presentation to Township of Langley Council, June 22, 2009

  1. 2. The Township of Langley 2008 Pavement Management System Study Prepared by EBA Engineering Consultants Ltd.
  2. 3. Contents <ul><li>Project Background </li></ul><ul><li>Data Collection </li></ul><ul><li>Road Network Present Conditions in 2008 </li></ul><ul><li>Road Network Assessment and Comparison to other Agencies </li></ul><ul><li>Highway Development and Management (HDM) Distress Prediction Modeling </li></ul><ul><li>Road Network Predicted Condition in 2018 </li></ul><ul><li>Analysis Inputs </li></ul><ul><li>Analysis Results </li></ul><ul><ul><li>Road Network Predicted Condition at Current Funding Levels </li></ul></ul><ul><ul><li>Road Network Predicted Condition at Recommended Funding Levels </li></ul></ul>
  3. 4. Project Background <ul><li>Township of Langley’s Pavement Management History </li></ul><ul><li>Pavement Management System Installed in 2002/2003; </li></ul><ul><li>The last full Pavement Condition Surveys were conducted in: </li></ul><ul><ul><li>2005 MRN Roads (TransLink); </li></ul></ul><ul><ul><li>2007 Major Roads (Arterial, Collector & Grid roads); </li></ul></ul><ul><ul><li>2005 & 2006 Local roads (Minor roads). </li></ul></ul><ul><li>The objectives of this study are: </li></ul><ul><li>Update analysis to reflect current construction pricing; </li></ul><ul><li>Analysis of Major, local and MRN roads; </li></ul><ul><li>Determine the optimal annual funding level that will indefinitely sustain the </li></ul><ul><li>quality and value of the pavement network; and </li></ul><ul><li>Integrate all pavement condition and analysis results in the Township’s GIS; </li></ul><ul><li>Update the City’s in-house systems to incorporate latest work. </li></ul>
  4. 5. Pavement Inventory <ul><li>Township of Langley has approximately 930 centreline km of road </li></ul><ul><li>(813 centreline-km of Paved road considered in analysis) </li></ul>Major Roads Analysis Local Roads Analysis * Includes Hwy 1 EB and WB, Hwy 10, unsurveyed parts of 264 St & 264 St Diversion MRN Roads Analysis 426 ) Local 121 Grid 59 ) MRN 106 Collector 101 Arterial Length (cl-km) Class
  5. 6. Township of Langley’s Road Network Road Network Classification Provincial Highways MRN Routes Arterial Routes Collector Routes Grid Local Routes Private/ new locals (Not Surveyed) Municipal Boundary
  6. 7. All Cracked Area (ACA) as a Measure of Pavement Condition 100% 30% V Poor 30% 10% Poor 10% 5% Fair 5% 1% Good 1% 0% V Good Colour To ACA From ACA Condition
  7. 8. Data Collection Cracking = 0 - 1 % Preventative Maintenance (crack sealing) $1.70 - $3.00/m 2 Cracking = 1 - 10 % Overlay, Grind and Patch $15 - $30/m 2
  8. 9. Data Collection Cracking = 10 - 30% (Overlay, Grind and Patch) $30 - $40/m 2 Cracking > 30% (Replace Asphalt) $40 - $65/m 2
  9. 10. Cracking (ACA) on Major Roads – 2007/08 0 – 1% (V Good) = 133 km 40% 1 – 5% (Good) = 98 km 30% 5 – 10% (Fair) = 42 km 13% 10 – 30% (Poor) = 50 km 15% Avg. Cracking measured in 2007 = 5.5% 30 – 100% (V Poor) = 5 km 2% Total = 328 km Avg. Cracking after 2008 Paving = 5.0%
  10. 11. Recommended Funding vs Actual (major roads) <ul><li>Average Cracking in 2000 = 5.2% </li></ul><ul><li>Average Cracking in 2003 = 4.7% </li></ul><ul><li>Recommended Funding in 2003 = $2.4 million/year </li></ul><ul><li>Actual Funding 2003 thru 2007 = $1.9 million/year * (average) </li></ul><ul><li>Measured cracking percentage in 2007 = 5.5% </li></ul><ul><li>Cracking % After 2008 Paving Programme = 5.0% </li></ul>* 31 km out of the total 328 km of Major roads were re-surfaced between the 2003 survey and the 2007 survey
  11. 12. Comparison to Other Agencies How does this compare to elsewhere in terms of Cracking ?? Using the same data collection / interpretation <ul><ul><li>British Columbia (major roads only) Km </li></ul></ul><ul><ul><li>Maple Ridge (2007) 8.8 % 154 </li></ul></ul><ul><ul><li>Abbotsford (2003) 7.8 % 304 </li></ul></ul><ul><ul><li>Coquitlam (2007) 5.7 % 119 </li></ul></ul><ul><ul><li>Surrey (2007) 5.6 % 490 </li></ul></ul><ul><ul><li>Township (2008) 5.0 % 328 </li></ul></ul><ul><ul><li>Township (2003) 4.7 % 328 </li></ul></ul><ul><ul><li>New Westminster (2006) 4.6 % 28 </li></ul></ul><ul><ul><li>Richmond (2004) 3.7 % 98 </li></ul></ul><ul><ul><li>Delta (2006) 2.4 % 113 </li></ul></ul>
  12. 13. Cracking (ACA) on MRN Roads 2005 0 – 1% (V Good) = 43 km 1 – 5% (Good) = 14 km 5 – 10% (Fair) = 2 km 10 – 30% (Poor) = 0 km Avg. Cracking = 1.0% 30 – 100% (V Poor) = 0 km
  13. 14. Cracking (ACA) on Local Roads - 2008 0 – 1% (V Good) = 156 km 1 – 5% (Good) = 125 km 5 – 10% (Fair) = 38 km 10 – 30% (Poor) = 72 km Avg. Cracking = 8.8% * 30 – 100% (V Poor) = 35 km Total = 426 km * Predicted condition in 2008 based on 2005/06 data
  14. 15. Analysis Inputs Example Pavement Strategies (combinations of treatments) 13 Years 10 Years 20 Years
  15. 16. Analysis Inputs Using Life Cycle Cost Analysis Evaluated Several Strategies for Each Pavement Segment <ul><li>Strategy is comprised of combinations of individual treatments and treatment application timings </li></ul><ul><li>For a given pavement there are hundreds potential preservation strategies. </li></ul>
  16. 17. Analysis Results – Major Roads Deterioration 9% 16% 4% 6% 20% Cracking (ACA) % $2.0mill $3.0 mill $3.5 mill $4.0 mill $1.5 mill Recommended Recommended Actual Spending on annual maintenance for major roads is @ $250,000/ year Predicted
  17. 18. Analysis Results – Local Roads Deterioration 4% 11% 15% Cracking (ACA) % $3.0 mill $3.5 mill $4.0 mill $2.5 mill Recommended Recommended 7% Actual spending on annual maintenance for local roads is @ $250,000/ year versus required $500,000/ year shown Predicted
  18. 19. Cracking (ACA) on Major & Local Roads 2009 - 2025 Predicted condition in 2009 - 2025 Major: $2.0 million/ year Local: $2.0 million/ year Annual Spending: $4.0 million/ year
  19. 20. Cracking (ACA) on Major & Local Roads - 2009 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 5.0 % = Local 8.8 % * Predicted condition in 2009
  20. 21. Cracking (ACA) on Major & Local Roads - 2010 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 5.0 % = Local 9.3 % * Predicted condition in 2010
  21. 22. Cracking (ACA) on Major & Local Roads - 2011 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 5.2 % = Local 9.7 % * Predicted condition in 2011
  22. 23. Cracking (ACA) on Major & Local Roads - 2012 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 5.5 % = Local 10.2 % * Predicted condition in 2012
  23. 24. Cracking (ACA) on Major & Local Roads - 2013 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 5.7 % = Local 10.6 % * Predicted condition in 2013
  24. 25. Cracking (ACA) on Major & Local Roads - 2014 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 6.0 % = Local 11.1 % * Predicted condition in 2014
  25. 26. Cracking (ACA) on Major & Local Roads - 2015 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 6.5 % = Local 11.6 % * Predicted condition in 2015
  26. 27. Cracking (ACA) on Major & Local Roads - 2016 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 7.0 % = Local 12.0 % * Predicted condition in 2016
  27. 28. Cracking (ACA) on Major & Local Roads - 2017 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 7.6 % = Local 12.7 % * Predicted condition in 2017
  28. 29. Cracking (ACA) on Major & Local Roads - 2018 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 8.2 % = Local 13.4 % * Predicted condition in 2018
  29. 30. Cracking (ACA) on Major & Local Roads - 2019 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 8.9 % = Local 14.0 % * Predicted condition in 2019
  30. 31. Cracking (ACA) on Major & Local Roads - 2020 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 9.6 % = Local 14.9 % * Predicted condition in 2020
  31. 32. Cracking (ACA) on Major & Local Roads - 2021 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 10.3 % = Local 15.8 % * Predicted condition in 2021
  32. 33. Cracking (ACA) on Major & Local Roads - 2022 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 11.0 % = Local 16.7 % * Predicted condition in 2022
  33. 34. Cracking (ACA) on Major & Local Roads - 2023 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 11.8 % = Local 17.4 % * Predicted condition in 2023
  34. 35. Cracking (ACA) on Major & Local Roads - 2024 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 12.7 % = Local 18.1 % * Predicted condition in 2024
  35. 36. Cracking (ACA) on Major & Local Roads - 2025 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $4.0 million/ year *Avg. Cracking = Major 13.7 % = Local 19.1 % * Predicted condition in 2025
  36. 37. Cracking (ACA) on Major & Local Roads 2025 Predicted condition in 2025 Major & Local: $500,000/ year Annual Spending (Do Minimum) :
  37. 38. Cracking (ACA) on Major & Local Roads - 2025 0 – 1% (V Good) 1 – 5% (Good) 5 – 10% (Fair) 10 – 30% (Poor) 30 – 100% (V Poor) Annual Spending: $500,000/ year *Avg. Cracking = Major 26.3% = Local 30.2% * Predicted condition in 15 years
  38. 39. Pavement Asset Value Pavement Type Replacement 2008 Value 2018 Value (Recommended Budget) MRN Roads $ 74 million $ 66 million $ 66 million (at $1.3 million/ Year) Major Roads $151 million $136 million $133 million (at $4.0 million/ Year) Local Roads $110 million $ 85 million $ 85 million (at $4.0 million/ Year) $335 million $287 million $284 million <ul><li>Recommended MRN Road Funding : 1.8% of Asset Value </li></ul><ul><li>Recommended Major Road Funding : 2.7% of Asset Value </li></ul><ul><li>Recommended Local Road Funding : 3.6% of Asset Value </li></ul><ul><li>Roads in good condition can be managed for between 2% and 2.5% of asset value </li></ul><ul><li>The local road funding could be reduced to $2.8 million/year once cracking is reduced to 4% </li></ul>
  39. 41. For Discussion
  40. 42. Calculating Pavement Value Pavement value = Cost of Excavation and Compaction + cost of Subbase + cost of Base + cost of Asphalt Original Ground Excavation and Compaction Subbase Base Asphalt
  41. 43. With time and traffic, pavement layers deteriorate Failure Rutting Cracking
  42. 44. Calculating current pavement asset value cracking Original Pavement value minus the cost in any given year to restore the pavement to as new condition New Asphalt
  43. 45. Pavement Asset Value <ul><li>Pavement Type Length Replacement 2008 Value </li></ul><ul><li>MRN Roads 59 km $ 74 million $ 66 million </li></ul><ul><li>Major Roads 328 km $151 million $136 million </li></ul><ul><li>Local Roads 426 km $110 million $ 85 million </li></ul><ul><li>813 km $335 million $287 million </li></ul>
  44. 46. Distress Prediction Modeling World Bank Pavement Performance - Distress Prediction Modeling <ul><li>Structure </li></ul><ul><li>Age </li></ul><ul><li>Traffic </li></ul><ul><li>Environment </li></ul><ul><li>Condition </li></ul>Crack Initiation Rutting Crack Progression Roughness Pot Holes Raveling
  45. 47. Analysis Inputs Maintenance / Rehabilitation Treatments and Costs Used <ul><li>Treatment Unit Cost </li></ul><ul><li>Crack Sealing $ 2.25/L-m </li></ul><ul><li>Skim Patching $14.00/m 2 </li></ul><ul><li>Surface Treatment $ 8.00/m 2 </li></ul><ul><li>Overlay (50 mm) $15.00/m 2 </li></ul><ul><li>Grind and Patch (40 mm) $22.00/m 2 </li></ul><ul><li>Grind and Patch (75 mm) $27.00/m 2 </li></ul><ul><li>Mill/ Inlay (50 mm) $20.00/m 2 </li></ul><ul><li>Reclaim $40.00/m 2 </li></ul><ul><li>Reconstruction $60.00/m 2 </li></ul><ul><li>Subsequent Rehabilitations $15.00/m 2 (no curb) </li></ul><ul><li>$20.00/m 2 (with curb) </li></ul>

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