TY - JOUR
T1 - Evaluation of pavement skid resistance using high speed texture measurement
AU - Meegoda, Jay N.
AU - Gao, Shengyan
N1 - Funding Information:
This research was sponsored by a research contract from the New Jersey Department of Transportation ( FHWA-NJ-2009-020 ). The contents of this paper reflect the views of authors, who are responsible for the facts and the accuracy of the information presented herein. The contents do not necessarily reflect the views or policies of NJIT, NJDOT or FHWA. This paper does not constitute a standard, specification or regulation. The authors wish to acknowledge the efforts of NJDOT Project Manager Mr. Vincent Nichnadowicz, and also the contributions of NJDOT Manager of the Bureau of Research Ms. Camille Crichton-Sumners, Mr. Nicholas C. Gephart of NJDOT, Dr. Geoff Rowe of ABATech, Mr. Sim Liu, Mr. Eugene Maina and Mr. Manan Shah of NJIT and Mr. Hadi Pezeshki of FHWA.
Publisher Copyright:
© 2015 Periodical Offices of Chang'an University
PY - 2015/12/1
Y1 - 2015/12/1
N2 - Skid resistance is an important parameter for highway designs, construction, management, maintenance and safety. The purpose of this manuscript is to propose the correlation between skid resistance, which is measured as skid resistance trailer, and mean profile depth (MPD) or the macro surface texture, which is measured by vehicle mounted laser, so that highway agencies can predict the skid resistance of pavement without the use of expensive and time consuming skid resistance trailer, which also causes disruption of traffic in use. In this research skid numbers and MPD from 5 new asphalt pavements and 4 old asphalt pavements were collected using a locked wheel skid trailer and a vehicle mounted laser. Using the data collected, a correlation between the skid number (SN40R) collected by locked wheel skid tester and the texture data or MPD collected by a vehicle mounted laser operating at highway speeds was developed. The proposed correlation for new pavements was positive for MPD values less than 0.75 mm to reach a peak SN40R value, then there was a negative correlation as the MPD increases until the MPD value was equal to 1.1 mm and beyond the MPD value of 1.1 mm to the maximum value of 1.4 mm, SN40R value remained almost constant. There were significant data scatter for the MPD value of 0.8 mm. To explain these results, water film thickness during the friction test was calculated and the critical MPD was defined. The effect of sealed water pool on the SN40R was discussed. The test result showed a similar trend for older asphalt pavements, but with lower SN40R values due to the polishing of pavement micro-texture by traffic. Hence, a reduction factor was proposed for older pavements based on cumulative traffic volume for the above correlation to predict the skid resistance of older pavements.
AB - Skid resistance is an important parameter for highway designs, construction, management, maintenance and safety. The purpose of this manuscript is to propose the correlation between skid resistance, which is measured as skid resistance trailer, and mean profile depth (MPD) or the macro surface texture, which is measured by vehicle mounted laser, so that highway agencies can predict the skid resistance of pavement without the use of expensive and time consuming skid resistance trailer, which also causes disruption of traffic in use. In this research skid numbers and MPD from 5 new asphalt pavements and 4 old asphalt pavements were collected using a locked wheel skid trailer and a vehicle mounted laser. Using the data collected, a correlation between the skid number (SN40R) collected by locked wheel skid tester and the texture data or MPD collected by a vehicle mounted laser operating at highway speeds was developed. The proposed correlation for new pavements was positive for MPD values less than 0.75 mm to reach a peak SN40R value, then there was a negative correlation as the MPD increases until the MPD value was equal to 1.1 mm and beyond the MPD value of 1.1 mm to the maximum value of 1.4 mm, SN40R value remained almost constant. There were significant data scatter for the MPD value of 0.8 mm. To explain these results, water film thickness during the friction test was calculated and the critical MPD was defined. The effect of sealed water pool on the SN40R was discussed. The test result showed a similar trend for older asphalt pavements, but with lower SN40R values due to the polishing of pavement micro-texture by traffic. Hence, a reduction factor was proposed for older pavements based on cumulative traffic volume for the above correlation to predict the skid resistance of older pavements.
KW - Cumulative traffic volume
KW - High speed laser
KW - Locked wheel skid trailer
KW - Mean profile depth
KW - Pavement texture
KW - Skid resistance
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U2 - 10.1016/j.jtte.2015.09.001
DO - 10.1016/j.jtte.2015.09.001
M3 - Article
AN - SCOPUS:84997503422
SN - 2095-7564
VL - 2
SP - 382
EP - 390
JO - Journal of Traffic and Transportation Engineering (English Edition)
JF - Journal of Traffic and Transportation Engineering (English Edition)
IS - 6
ER -