Kansas Pavement Management System: A System … · Kansas Pavement Management System: A System...
Transcript of Kansas Pavement Management System: A System … · Kansas Pavement Management System: A System...
Kansas Pavement Management System: A System Worth Preserving
Richard W. Miller, P.E.Pavement Management Engineer
Kansas Department of Transportation6/21/2016
PMS in Kansas
• Long History– Data goes back to Early 1980s.– System used since 1989.
• Support Budget Requests– Used to Develop State Funding Programs 1989, 2000,
and 2010
• Support Program/Project Decisions– Used since 1989 for Substantial Maintenance/1R
• Provide Reports of Condition and Needs– HPMS Pavement Condition to Feds – KDOT Pavement Condition for State Stakeholders
PMS Supports Decisions
• What Pavement Decisions do we need to make?
• What information do we need to support those decisions?
• How do we get that information?
• Does that information coincide with information we need for other decisions?
Kansas Tiers in Pavement Decisions
• Major Rehab/Replacement (Pavement Driven)
• Routine Maintenance
• Rehab/Preservation/Preventive
PMS Measures
• Black Surfaces– Roughness, Transverse Cracking, Rutting
• “Fatigue Cracking”, Block Cracking, ….
• White Surfaces– Roughness, Joint Distress, Faulting
• Cracked Panels, Corner Breaks, …
Measures should guide decisions
How To Measure
• Roughness – wheelpath profiler
• Joint Distress – Manual (ugh!)
• Faulting – wheelpath profiler/3-D transverseprofiler
Using the Measurements – Reporting
• Distress States 111-333
– IRI <=105, 105-165, >=165 in/mile
– Joint Distress … combination of how much and how severe
– Faulting … combination of how much and how severe
Using the Measurements – Reporting2
• Good/Fair/Poor - chart
• Percent of Pavements Good/Poor - chart
Kansas Tiers in Pavement Decisions
• Major Rehab/Replacement (Pavement Driven)– Prioritization – Where are the pavements really bad?
– Roughness, cracking, joint distress, rutting, faulting
• Routine Maintenance– Crystal Ball Reading – Reactive, but can plan for
anticipated material, equipment, and staffing needs– Roughness, cracking, joint distress, rutting, faulting
• Rehab/Preservation/Preventive– Optimization – Where can we maximize our benefit by
doing what?– Roughness, cracking, joint distress, rutting, faulting
Current
Very Near Future
Current and at many future times
Using the Measurements –ProgrammingCurrent
Conditions
Budget
Treatments (feasible, costs, performance)
Future Conditions
OPTIMAL POLICY
What set of treatments should be applied where to move from the current conditions to the desired conditions given the available budget?
Current Condition Future Condition
• A plan to get from current to (desired) future.
0 200 400 600 800
111
112
211
212
311
312
Miles of Pavement by Distress State 2015
0 200 400 600 800
111
112
211
212
311
312
Miles of Pavement by Distress State 2018
What Actions?, Where?, When?
And make sure the future is sustainable too!
Performance Goals
Using the Measurements –Budget Requests
Current Conditions
Budget
Treatments (feasible, costs, performance)
Future Conditions
What is the minimum amount of money to spend on treatments to move from the current conditions to the desired conditions?
Manage, Report, Monitor, Act
• PMS – manage your future– Don’t lose sight of purposes
• Communication– Provide clear reporting that supports decisions
• Data– Efficiently collect and process information that
supports reporting and decisions
• Act– A measuring system and reporting are not enough