PURCHASE AND INVESTIGATION OF CHLOE PROFILOMETER

THE REPORT COVERS NEBRASKAS EXPERIENCE IN MAKING THE CHLOE PROFILOMETER FIELD OPERATIONAL, AND A SUBSEQUENT CORRELATION STUDY BETWEEN THE PROFILOMETER AND THE STATE-OWNED BPR TYPE ROUGHOMETER. THIS COVERAGE INCLUDES /1/ DESCRIPTION OF PROFILOMETER, TOWING VEHICLE, HAULING VEHICLE AND SAFETY PROCEDURES, /2/ DISCUSSION OF CALIBRATIONS AND ADJUSTMENTS PRIOR TO FIELD OPERATIONS AND /3/ PRESENTATION OF THE RESULTS OF THE CORRELATED STUDY. THE CORRELATION STUDY BETWEEN THE CHLOE PROFILOMETER AND THE STATE-OWNED BPR TYPE ROUGHOMETER WAS CONDUCTED ON 45 SECTIONS OF RIGID PAVEMENT. THE DATA IS ANALYZED AND A LEAST SQUARED REGRESSION LINE IS COMPUTED. THE FINAL ANALYSIS PROVIDES A PSI EQUATION FOR THE NEBRASKA ROUGHOMETER. THE REPORT CONCLUDES THAT' 1. THE CHLOE PROFILOMETER IS AN INSTRUMENT WORTHY OF THE STUDY AND USE. 2. THE DANGER OF OPERATION AT SLOW SPEED /3 MPH/ IS A DEFINITE DISADVANTAGE. 3. THE ALIGNMENT OF THE SLOPE WHEELS OF THE PROFILOMETER PRESENTED QUITE A PROBLEM. 4. THE REPEATABILITY OF THE PROFILOMETER DATA IMPROVES AS USE AND UNDERSTANDING OF THE EQUIPMENT CONTINUES. 5. THE CORRELATION STUDY SHOWED QUITE REASONABLE CORRELATION BETWEEN THE TWO MEASURING DEVICES, AND COMPARED FAVORABLEY WITH THE SOUTH DAKOTA STUDY. /BPR/

• Supplemental Notes:
  • Hpr-1/3/, STATE 63-13, BPR13
• Corporate Authors:

  Nebraska Department of Roads

  1500 Highway 2, P.O. Box 94759
  Lincoln, NE  United States  68509
• Publication Date: 1965-11

Subject/Index Terms

• TRT Terms: Crash investigation; Field studies; Profilometers; Safety; Studies; Test procedures; Towing devices
• Uncontrolled Terms: Data; Field data; Present serviceability index; Reproducibility
• Geographic Terms: Nebraska
• Old TRIS Terms: Chloe profilometer; Safety practices
• Subject Areas: Geotechnology; Highways; Materials; Safety and Human Factors;

Filing Info

• Accession Number: 00215831
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Jan 1 1994 12:00AM