Abstract This second part of the study is a follow-up to Part I. In addition to the Asset Condition Index (ACI) establishments and statistical model estimates of the first part, this further study analyzed several typical asset improvement methods, which placed priority on safety. This study used data that were identical to those in the previous one study, i.e., the one-mile-segment data set for all state primary roads from 2004 to 2009 integrated using geographic information system (GIS) tools. With the estimated ACI and the separate models, this study focused on developing a methodology to prioritize safety improvements based on asset conditions. Results indicate that minor rehabilitation and durable material marking have the highest B/C ratio when a one-year analysis period is considered. To expand the analysis for 5 years, a decision-making matrix of ACI ranges versus treatment alternatives was developed.
GAO Jian,ZHANG Fan,SUN Ling. A Study on the Relationship between Asset Condition and Safety (Part Ⅱ)[J]. Journal of Highway and Transportation Research and Development, 2015, 9(4): 91-96.
[1] GAO Jian, LUO Mei-cun, ZHANG Jian-dong. A Study on the Relationship between Asset Condition and Safety (Part I)[J]. Journal of Highway and Transportation Research and Development, 2014, 8(2):99-104. (in Chinese)
[2] WASHINGTON S P, KARLAFTIS M G, MANNERING F L. Statistical and Econometric Methods for Transportation Data Analysis[M]. Boca Raton, Florida:Chapman and Hall/CRC, 2003.
[3] HAINING R P. Spatial Data Analysis:Theory and Practice[M]. Cambridge:Cambridge University Press, 2003.
[4] BAILEY T C, GATRELL A C. Interactive Spatial Data Analysis[M]. London:Longman Scientific & Technical, 1995.
[5] BIVAND R S, PEBESMA E J, GOMEZ-RUBIO V. Applied Spatial Data Analysis with R[M]. Baltimore, MD:Springer, 2008.
[6] CRESSIE N. Statistics for Spatial Data[M]. New York:Wiley Interscience, 1993.
[7] CHILES J P, DELFINER P. Geostatististics-modelling Spatial Uncertainty[M]. New York:Wiley-interscience, 1999.
[8] SCHABENBERGER O, GOTWAY C A. Statistical Methods for Spatial Data Analysis[M]. Boca Raton, Florida:Chapman & Hall/CRC, 2009
[9] WACKERNAGEL H. Multivariate Geostatistics[M]. Berlin:Springer, 2003.
[10] MASS Highway. Project Development & Design Guide[M]. Boston, MA:Mass DOT, 2006.
[11] HALL J W, SMITH K L, TITUS-GLOVER L, et al. Guide for Pavement Friction, NCHRP Web-Only Document 108[R]. Washington D. C.:Transportation Research Board, 2009.
[12] BAHAR G, MASLIAH M, ERWIN T, et al. Pavement Marking Materials and Markers:Real-World Relationship between Retroreflectivity and Safety over Time. NCHRP Web-Only Document 92[R]. Washington D. C.:Transportation Research Board, 2006.
[13] THOMAS G B, SCHLOZ C. Durable, Cost-Effective Pavement Markings Phase I:Synthesis of Current Research[R]. Iowa DOT Project TR-454. Ames, Iowa:Iowa Department of Transportation, 2001.
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