Non-contact skid resistance measurement : final report, December 2009.

Details

• Creators:
  Meegoda, Jay N.
• Corporate Creators:
  New Jersey Institute of Technology. Department of Civil Engineering
• Corporate Contributors:
  New Jersey. Dept. of Transportation. Division of Research and Technology ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Skid resistance tests
  • Pavement management systems
  • Pavements--Skid resistance--Testing
  • Pavements--Skid resistance--New Jersey--Data processing
• Publication/ Report Number:
  FHWA-NJ-2009-020
• Resource Type:
  Tech Report
• Geographical Coverage:
  New Jersey
• Edition:
  Final report; Jan. 2008-Dec. 2009.
• Corporate Publisher:
  New Jersey. Dept. of Transportation
• Abstract:
  In this research, a correlation between the SN40R collected by locked wheel skid tester and the ; texture data or Mean Profile Depth (MPD) collected by a vehicle mounted laser operating at highway ; speeds was developed. The proposed correlation between SN40R and MPD is positive for MPD values ; less than 0.75 mm to reach a peak SN40R value, then it becomes a negative correlation of decreasing ; SN40R values with increase in MPD values until the MPD values reached 1.15 mm, which was the ; maximum value measured in this research. However, the slope of the negative correlation becomes ; smaller with increasing MPD. It was also observed that there is significant data scatter for the MPD ; value of 0.8mm. The test result showed a similar trend for old asphalt pavements, but with lower SN40R ; values due to polishing of pavement micro-texture by traffic. Based on the comparison between old and ; new asphalt pavements, reduction coefficients, which is a functions of road treatment time and traffic ; volume was developed to account for the traffic polishing effect on micro-texture of pavement. ; This report also describes two field tests performed to validate the above correlation and ; development of an interface for the PMS to upload the predicted skid data from texture data obtained ; from high speed laser. During the field tests, MPD values and SN40R were collected by a vehicle ; mounted laser and a locked wheel skid trailer, respectively. Then the comparison between predicted ; SN40R by using the developed correlation between SN40R and MPD and measured SN40R are ; conducted. For the prediction of SN40R, reduction coefficient, which is a function of traffic volume and ; pavement age (treated or refurnished age), were used to take into account the polishing effect traffic on ; micro-texture of the pavements. The results show that the measured and predicted SN40R values ; match each other very well with the maximum variance between them less than 5. Based on the ; validated correlation between MPD and SN40R, an interface for the PMS was developed to extract and ; process MPD data collected by vehicle mounted laser and report predicted skid number to NJDOT ; pavement management system.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17679/dot_17679_DS1.pdf
• File Type:
  [PDF - 1.99 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:bc5b9be701543360d86e16b9bde3c9d61bc67243b4ffa613d405b8beeab6e96f