References
- " Distress Identification Manual for the Long-Term Pavement Performance Project. " ( 1993 ) Strategic Highway Research Program, National Research Council , Publication No. SHRP-P- 338 .
- Rada , G.R. , Wu , C.L. , Elkins , G.E. , Bhandari , R.K. and Bellinger , W.Y. , ( 1998a ) " An Update of LTPP Manual Distress Data Variability: Bias and Precision. " Paper Presented at 1998 Transportation Research Board Annual Meeting and Accepted for Publication In Transportation Research Records , TRB, National Research Council , Washington , D.C .
- Rada , G.R. , Wu , C.L. , Elkins , G.E. and Bhandari , R.K. , ( 1998b ) " Characterization of Manual Distress Data Variability: Apparent Bias and Precision. " Paper Presented at the Fifth International Conference on the Bearing Capacity of Roads and Airfields , Trondheim , Norway .
- " Study of LTPP Distress Data Variability, Final Report. :" ( 1998 ) Technical Report prepared by LAW PCS Engineering for Federal Highway Administration , McLean , Virginia .