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2-Year Pavement Performance and Target AdjustmentsTxDOT – Maintenance Division

October 15, 2020

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TxDOT Submit TAMP Target: NHS System

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Performance measure Baseline 2020Target 2022Target

IH %Good N/A 66.4%

%Poor N/A 0.3%

NonIH NHS %Good 54.4% 52.0% 52.3%

%Poor 13.8% 14.3% 14.3%

• IH used IRI and full distresses as performance measure• NonIH NHS used only IRI as performance measure• A 5-year moving-average approach is used to set the target

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Pavement Data Collection History

1982

1993

2001

2017

• State maintained on-system roadways (89,986 roadbed miles)• Off-system National Highway System (NHS) (2,085 roadbed

miles)• HPMS samples (2,943 roadbed miles)• Toll roads (1,183 lane miles)

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PMIS vs. HPMS

Pavement Management Information System (PMIS) is an automated system for storing, retrieving, analyzing, and reporting pavement condition information. TxDOT PMIS contains pavement data for all roadbeds (one lane per direction)

Highway Performance Monitoring System (HPMS) is a national level highway information system that includes data on the extent, condition, performance, use and operating characteristics of the nation’s highways. FHWA requires distresses and ride to be reported only on the center lane with all bridge locations removed. (one lane per roadway)

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TxDOT Pavement Management Strategies

Each District put together a project specific and financially constrained 4-year pavement management plan each year.

Conduct a serious of peer review to share the best maintenance practice.

Preservation – 83% Light Rehab – 5% Medium Rehab – 5% Heavy Rehab – 7%

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Summary of Performance Measures and Targets

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• IH used IRI and full distresses as performance measure• NonIH NHS used only IRI as performance measure• A 3-year moving-average approach is used to adjust the target using only HPMS

data.

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Thank you!

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