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Publication Number: FHWA-HRT-01-167
Date: April 2005

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Figure 3. LTPP data collection and data movement flowchart.

Flowchart. This figure presents the following information:

Deflection data collected with falling weight deflectometer (FWD):

  1. Field control
  2. Data files sent to Regional Offices
  3. QC using FWD SCAN. Data may be edited
  4. Data loaded into RIMS

Longitudinal profile collected with profilometer:

  1. Field control by checking on International Roughness Index (IRI) variability
  2. Data files sent to Regional Offices
  3. PROFCHK: recompute profile parameters and QC
  4. Some profiles may be eliminated, then data is loaded into the RIMS

Transverse profile data by dipstick:

  1. QC using PROFCHK by the regions
  2. Some profiles may be eliminated
  3. Data loaded into the RIMS

Transverse profile data with film:

  1. Data analyzed and electronically stored
  2. Data files sent to Regional Offices
  3. Data loaded into the RIMS

Distress data:

  • If it is manually collected, then review and enter data by Regional Offices, and data is loaded into RIMS
  • If it is photographically collected, then data files are sent to Regional Offices, and data is loaded into RIMS

Climatic data collected at automated weather station (AWS):

  1. Data downloaded by modem or during site visit
  2. AWS check to review the data
  3. Data checked and extracted
  4. Data loaded into RIMS

Traffic data collected by weigh-in-motion (WIM) and automated vehicle classification (AVC):

  1. Data entered into Regional Traffic Database
  2. Perform QC and flag data
  3. All data entered into the Central Traffic Database
  4. Acceptable data used to compute summary statistics
  5. Data loaded into the RIMS

Materials data field and laboratory tests (coring and sampling):

  1. Testing by LTPP and testing by State agencies
  2. Test data/forms forwarded to Regional Offices
  3. Review and convert data into machine readable form
  4. Data loaded into the RIMS

Materials data field and laboratory tests (in situ field testing):

  1. Test data/forms forwarded to Regional Offices
  2. Review and convert data into machine readable form
  3. Data loaded into the RIMS

Data Loaded into RIMS:

  1. Series of data-specific QC programs executed on data files
  2. Manual data upgrades by Regions if appropriate
  3. Data uploaded into IMS Database (National)
  4. Level E Data release to public

Return to Figure 3

 


The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT).
The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT). Provide leadership and technology for the delivery of long life pavements that meet our customers needs and are safe, cost effective, and can be effectively maintained. Federal Highway Administration's (FHWA) R&T Web site portal, which provides access to or information about the Agency’s R&T program, projects, partnerships, publications, and results.
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