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Smoothness Specifications for Pavements Final Report (1997) / Chapter Skim
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Chapter 3. Data Base Development
Pages 29-40

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From page 29...
... These data typically include pavement design, construction, and monitoring data on several highway study sections and pavement projects available from the following sources: . Past roaci tests (e.g., American Association of State Highway Officials [AASHO]
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From page 30...
... Sources of Data for Project Analysis Data Base Past Road Tests AASHO Road Test The AASHO Road Test represents one of the most comprehensive studies of pavement performance that has ever been conducted. Over 800 AC and PCC pavement study sections were constructed and evaluated from 1958 to 1960.
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From page 31...
... tested Unit length of paving section tested Positionts) tested Number of passes made per position Method of equipment calibration Roughness index used Roughness measurements Extended Roughness Information Equipment type and model Dates of testing Lanes tested Unit length of paving section tested Positions tested Number of passes made per position Method of equipment calibration Roughness index used Roughness measurements T~e-series serviceability data, based largely on slope variance measurements made win a longitudinal profiling device, were obtained for all of the sections.
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From page 32...
... This study involved initial and extended roughness testing of several AC and PCC pavement projects located on various Alabama highways. The roughness measurements were made with the BPR Road-Roughness Indicator on 0.5-mi (0.~-km)
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From page 33...
... was found to contain estimates of initial PSIs for many of the GPS test sections (the PST data were either calculated from initial roughness measurements, extrapolated and calculated from subsequent roughness measurements, or estimated using project records, specifications, or personal experience) , the estimates were not deemed reliable enough to use for analysis.
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From page 34...
... In anticipation of soliciting data from selected SHAs, a two-part data request package was developed, which consisted of a statement of request for pavement project data, a synopsis of He current study, and a detailed list of the types of data needed for several pavement projects. The first part of the data request package pertained to the solicitation of initial and extended pavement roughness data.
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From page 35...
... -c' ~ The extended roughness data kept by the Illinois DOT consisted of IRI measurements keyed by milepost and taken on 0.~-mi (0.16-km) Intervals using a Soup Dakota-type profiler.
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From page 36...
... Maintenance treatments and rehabilitation work for portions of a given pavement project further compounded the ability to generate accurate timeseries roughness data. Arizona The Arizona DOT provided an initial data package contairung historical roughness data on 12 highway projects.
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From page 37...
... These projects included IS PCC pavements, 17 AC pavements, and 12 AC/PCC pavements, built during He 1970s and mid 1980s. The extended roughness data obtained during He on-site visits were for the years 1989 Trough 1994, and were made on 0.~-mi (0.16-km)
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From page 38...
... These projects were tested for construction acceptance using a GM ProfiIometer~ and, in a few instances, the BPR Roughomeler. Washington The Washington DOT provided historical roughness data on various interstate and primary highway projects throughout Washington state.
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From page 39...
... Some projects, however, were noted as having the first measurement the year following construction completion. Summary Many data sources were tapped In order to obtain useful historical roughness data for examination under this study.
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From page 40...
... ~Type of Data ~Data Received, Processed, ~ lData Source ~Available | Analyzed l AASHO Road Test ~Serviceability Yes WASHO Road Test ~Roughness Yes San Diego County Road Test ~Serviceability Yes ~ Alabama Roughness Study ~Roughness Yes ~ l Minnesota Investigation 183 ~Serviceability Yes l _ v LTPP GPS I Roughness 1es l RPPR l Roughness . es l 1 Arizona l Roughness Yes l l Georgia T Roughness Yes l l Illinois l Roughness Yes l ~Iowa r Roughness Yes l l Kentucky l Roughness Yes ~ 1 Michigan l Roughness Yes l l Minnesota l Roughness Yes l l South Dakota l Roughness Yes l l Washington l Roughness Yes l I .
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Key Terms

  • roughness data
  • road test
  • extended roughness
  • historical roughness
  • initial roughness

  • pavement design
  • pavement projects
  • highway projects
  • aasho road
  • agency survey

  • analysis data
  • dot provided
  • project analysis
  • pavement designs
  • smoothness specifications

  • initial smoothness
  • washo road
  • flexible pavement
  • bpr roughometer
  • pavement sections

  • request package
  • provided historical
  • anticipated data
  • pavement management
  • data request

  • initial pavement
  • pavement smoothness
  • arizona dot
  • test data
  • projects throughout


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