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

What do our customers want?

• Safe

• Smooth

• Efficient to use

• Efficient to maintain

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

Concrete Range and Intensity

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

A System Worth Preserving

• Step out of the