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| A Study on the Relationship between Asset Condition and Safety (Part Ⅱ) |
| GAO Jian, ZHANG Fan, SUN Ling |
| Research Institute of Highway, Ministry of Transport, Beijing 100088, China |
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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.
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Received: 01 March 2015
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| Fund:Supported by the Information Technology Research Project by Ministry of Transport of P.R.C (No.2015364223060) |
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2015, Vol. 9 
