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Roadway Measurement System Evaluation (2011) / Chapter Skim
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Pages 7-10

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From page 7...
... As more in-depth analysis of the final data set proceeded, it was observed that the participants may not have fully understood the data reduction and processing descriptions in the rodeo data collection plan and data elements list. The provision of more in-depth descriptions of the data elements, including the following, may have improved the teams' understanding of the data requirements: • Descriptions of the data elements; • Instructions regarding where to reference the data elements; • Details regarding where to measure the data elements; • How to measure the data elements; • How the data elements are reported, including units; and • Methodologies for processing directly measured data into desired final data, for example, instructions related to how to take the sliding grade measurements from the vehicles and use them to develop vertical curvature data.
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From page 8...
... Barrier Systems Partial x -- -- x No Match Partial On-Street Parking x x x x x No Match x Pavement Markings Partial x Partial Partial x No Match Partial Roadside Obstacles Partial Partial -- x -- No Match Partial Rumble Strips x -- -- -- x No Match -- Sidewalks x x x x Partial No Match x Signs x Partial x Partial x No Match x Street Lighting x x x x x No Match x Intersections Configuration & Dimensions x x Partial x x No Match Partial Traffic Control x x x x x No Match x Signalized Intersections x -- Partial x x No Match x Stop-Controlled Intersections x x x x x No Match x Driveways x x x x x No Match x Lanes Partial Partial Partial -- Partial No Match Partial Median x x x x -- No Match Partial Ramps x -- x x -- No Match x Shoulder x x x -- x No Match -- Geometrics Grade x -- No Match -- No Match No Match x Roadway Cross-Slope x -- No Match -- No Match No Match x Clear Zone Cross-Slope & Width -- -- -- -- -- -- -- Horizontal Curvature Partial -- -- -- No Match No Match Partial Sight Distance -- -- -- -- -- -- -- Vertical Curvature -- -- -- -- -- -- -- Road Profile -- -- x -- x x x Pavement Texture -- -- -- -- -- No Match x Pavement Edge Drop-off -- -- -- -- -- -- -- Pavement Marking Reflectivity -- -- -- -- -- -- -- or Retroreflectivity Note: x = the team reported data for all data elements of this data type; -- = the team did not report any of the data elements for the data type; Partial = the team rep data type.
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From page 9...
... The rest of these data types and elements were not provided by any of the teams evaluated in the analysis of the final data set. The following discussion regarding data elements that were not provided by any of the participants offers some insight into why they were not offered by the participants.
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From page 10...
... ; and• Site 7 -- Cross-slope, grade, length of pavement for grade measurement, lane width, shoulder width (paved width) , and signs (GPS coordinates and MUTCD code)
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Key Terms

  • match x
  • gps coordinates
  • partial x
  • data elements
  • match partial

  • x partial
  • rumble strips
  • partial partial
  • data type
  • elements list

  • data element
  • final data
  • rumble strip
  • lane width
  • rodeo data

  • pavement markings
  • data types
  • intersections x
  • collection equipment
  • teams provided

  • requested format
  • team reported
  • collection vehicle
  • sight distance
  • automated data

  • desired data
  • scanning laser


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