Rehabilitation of Jointed Portland Cement Concrete Pavements: SPS-6, Initial Evaluation and Analysis

FIGURE 2 LTPP data collection and data movement flowchart.

• LEVEL E DATA - Release to public [IMS Database (National)]
• Data uploaded into IMS [IMS Database (National)]
• Manual data upgrades by Regions if appropriate
• Series of data-specific QC programs executed on data files
• Data Loaded Into RIMS
• DEFLECTION DATA - Collected with FWD
  • Data files sent to Regional Offices
  • QC using FWD SCAN - Data may be edited
• LONGITUDINAL PROFILE - Collected with Profilometer
  • Field Control by checking on IRI variability
  • Data files sent to Regional Offices
  • PROFCHK: Recompute profile parameters & QC
• TRANSVERSE PROFILE DATA
  • By Dipstick^®
    • QC using PROFCHK by the Regions
    • Some profiles may be eliminated
  • With Film
    • Data analyzed & electronically stored
    • Data files sent to Regional Offices
• DISTRESS DATA
  • Manually
    • Review & enter data by Regional Offices
  • Photographically
    • Data files sent to Regional Offices
• MATERIALS DATA - Field & Laboratory Tests
  • Coring & sampling
    • Testing by LTPP
    • Testing by State agencies
  • In situ field testing
    • Test data/forms forwarded to Regional Offices
    • Review & convert data into Machine-readable form
• TRAFFIC DATA - Collected by WIM & AVC
  • Data entered into Regional Traffic Database
  • Perform QC & flag data
  • All data
    • Central Traffic Database
  • Acceptable data
    • Compute summary statistics
• CLIMATIC DATA - Collected at AWS
  • Data downloaded by modem or during site visit
  • AWS CHECK to review data
  • Data checked & extracted

Abbreviations

• AVC = Automatic Vehicle Classification
• FWD = Falling-Weight Deflectometer
• IRI = International Roughness Index
• AWS = Automated Weather Station
• WIM = Weigh-in-Motion