LONGITUDINAL ROAD PROFILING BY MEASUREMENT OF COORDINATES AND SLOPES, A COMPARISON BETWEEN TWO DIFFERENT MEASURING SYSTEMS

AN INVESTIGATION OF THE CORRELATION BETWEEN THE MOTORIST'S JUDGEMENT OF THE UNEVENNESS OF THE ROAD SURFACE AND THE ROOT MEAN SQUARE SLOPE AS MEASURED BY THE CHLOE METER WAS PERFORMED IN THE AUTUMN OF 1970 BY RATING AND MEASUREMENTS OF 23 TEST SECTIONS IN THE SURROUNDINGS OF STOCKHOLM. THESE DATA AND MEASUREMENTS MADE BY MEANS OF A MEASURING SYSTEM MADE AT THE INSTITUTE AND BASED UPON THE GM ROAD PROFILER WERE USED FOR A COMPARISON OF THESE TWO MEASURING SYSTEMS. THE CORRELATION BETWEEN THE RATING ON ONE HAND AND THE ROOT MEAN SQUARE SLOPE, THE COMFORT INDEX, THE ROAD HOLDING INDEX AND THE IMPACT FACTOR WAS STUDIED. SOME FURTHER PARAMETERS DERIVED FROM THE CHLOE DATA WERE ALSO STUDIED AS WELL AS THE FOURIER SPECTRA OF THE PROFILES ACCORDING TO BOTH MEASURING SYSTEMS. THE CORRELATION COEFFICIENTS WERE ABOUT 0.7. ADVANTAGES AND DISADVANTAGES OF THE TWO MEASURING SYSTEMS ARE DISCUSSED.

• Supplemental Notes:
  • Rept No 25A
• Corporate Authors:

  Swedish National Road and Transport Research Institute (VTI)

  Linköping,   Sweden  SE-581 95
• Authors:
  • Andersson, O
  • Nordstram, O
• Publication Date: 1973

Media Info

• Features: Figures; References; Tables;

Subject/Index Terms

• TRT Terms: Comfort; Drivers; Measurement; Profilometers; Reaction time; Slopes; Smoothness; Texture
• Uncontrolled Terms: Driver reaction
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207610
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 4 1974 12:00AM