01656638

Component

This paper presents the results of an investigation into the effect of measurement variability on the reported pavement condition within the Federal Highway Administration’s (FHWA’s) Highway Performance Monitoring System (HPMS). Given the rules developed by FHWA in support of the past two transportation funding bills, reporting accurate pavement condition for input into the HPMS has increased in importance. In light of this, FHWA undertook a study to assess the quality and representativeness of the data contained in the HPMS. This paper presents the results of the portion of the study that assessed the effect of variability in condition measurements on changes in three consecutive years of HPMS data. First, the changes in the condition metrics (i.e., cracking, rutting, faulting and roughness) over the three year time frame are presented. Following this, changes in the overall condition (i.e., good, fair and poor) were investigated, and an approach to predicting whether changes are due to maintenance is detailed. Finally, a logistic regression model that shows the relative importance of changes in each metric on predicting whether maintenance was performed is discussed. Ultimately, the results of the assessment demonstrate that, although significant variability exists in the HPMS data from year to year, this variability is offset by a large sample size. Individual pavement segments can show significant changes in the condition metrics from year to year, but the overall network condition is relatively stable.

This paper was sponsored by TRB committee AFD10 Standing Committee on Pavement Management Systems.

18-00309

English

12p

2018

Transportation Research Board 97th Annual Meeting

Digital/other

Figures; References; Tables

Data quality; Logistic regression analysis; Measurement; Pavement cracking; Roughness; Rutting

Highway Performance Monitoring System

Faulting (Pavements); Pavement conditions; Variability

Highways; Pavements

Transportation Research Board Annual Meeting 2018 Paper #18-00309

TRIS, TRB, ATRI

Jan 8 2018 10:06AM