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
- 2. The Township of Langley 2008 Pavement Management System Study Prepared by EBA Engineering Consultants Ltd.
- 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
- 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
- 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
- 9. Data Collection Cracking = 10 - 30% (Overlay, Grind and Patch) $30 - $40/m 2 Cracking > 30% (Replace Asphalt) $40 - $65/m 2
- 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%
- 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
- 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
- 15. Analysis Inputs Example Pavement Strategies (combinations of treatments) 13 Years 10 Years 20 Years
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 37. Cracking (ACA) on Major & Local Roads 2025 Predicted condition in 2025 Major & Local: $500,000/ year Annual Spending (Do Minimum) :
- 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
- 41. For Discussion
- 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
- 43. With time and traffic, pavement layers deteriorate Failure Rutting Cracking
- 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