TY  - JOUR
PY  - 2011//
TI  - Indirect skid resistance measurement for porous asphalt pavement management
JO  - Transportation research record
A1  - Dell'Acqua, Gianluca
A1  - De Luca, Mario
A1  - Lamberti, Renato
SP  - 147
EP  - 154
VL  - 2205
IS  - 
N2  - This paper focuses on developing a method for road managers to assess the sideways-force coefficient (SFC) in porous asphalt with low-cost standard tests. SFC can be used as a component in road surface condition surveys and asset management decisions. A standard piece of equipment for determining SFC is the sideways-force coefficient routine investigation machine (SCRIM), which can be truck or trailer mounted. This equipment is often beyond the budget of most small, low-volume road agencies. An empirical model for the indirect estimation of SFC for porous road surfaces was developed as a result of this study. With hand-held equipment--the portable skid resistance tester [to derive the British pendulum number (BPN)] and the sand patch method [height in sand (HS) test]--a correlation of these test results can be made, and a reasonable approximation to SFC with the use of the SCRIM method can be attained. BPN, the unit of measurement of the skid tester, is a representation of the microroughness of the wearing surface, and the sand patch method (HS test) results yield the macroroughness of the pavement. The study was conducted over 20-km segments of low-volume roadway in southern Italy. The initial results are promising, with a maximum percentage of error of less than 15.2%. Further study is needed to adapt the model to other road surface conditions.<p /> 
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/10.3141/2205-19
ID  - ref1
ER  -