公路资产与交通安全的关系研究(I)

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摘要 Incorporating safety performance measures into asset management can assist agencies in efficiently managing their aging assets and improve system-wide safety. Previous studies have revealed the relationship between individual asset performance and safety; however,the relationship between combined measures of operational asset condition and safety performance has not been explored. Thus, in this paper, the effect of pavement marking retroreflectivity and pavement condition on safety was investigated in a multiobjective manner. Data on one-mile segments for all primary roads from 2004 to 2009 were collected from a state of the U.S. and integrated by GIS tools. An Asset Condition Index (ACI) ranging from 1 to 3 was developed for each road segment by scoring and weighting the individual components. Finally, statistical models were then developed to estimatethe relationship between ACI and expected number of crashes, while controlling for exposure.Future studies will focus on developing a methodology to prioritize safety improvements on the basis of asset conditions.

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	高剑
	张建栋
	罗梅村

关键词 ： ITS, asset management, safety, asset condition index, pavement condition, pavement marking retroreflectivity

Abstract：Incorporating safety performance measures into asset management can assist agencies in efficiently managing their aging assets and improve system-wide safety. Previous studies have revealed the relationship between individual asset performance and safety; however,the relationship between combined measures of operational asset condition and safety performance has not been explored. Thus, in this paper, the effect of pavement marking retroreflectivity and pavement condition on safety was investigated in a multiobjective manner. Data on one-mile segments for all primary roads from 2004 to 2009 were collected from a state of the U.S. and integrated by GIS tools. An Asset Condition Index (ACI) ranging from 1 to 3 was developed for each road segment by scoring and weighting the individual components. Finally, statistical models were then developed to estimatethe relationship between ACI and expected number of crashes, while controlling for exposure.Future studies will focus on developing a methodology to prioritize safety improvements on the basis of asset conditions.

Key words： ITS asset management safety asset condition index pavement condition pavement marking retroreflectivity

收稿日期: 2013-11-01

基金资助:Supported by the Science and Technology Project Commissioned by Guangdong Highway Administration (NO.2013-19);the Science and Technology Project Commissioned by Ministry of Transport (NO.2012312223340)

通讯作者: GAO Jian, gaojian@itsc.cn E-mail: gaojian@itsc.cn

引用本文:

高剑, 张建栋, 罗梅村. 公路资产与交通安全的关系研究(I)[J]. Journal of Highway and Transportation Research and Development, 2014, 8(2): 99-104.
GAO Jian, ZHANG Jian-dong, LUO Mei-cun. Study on the Relationship between Asset Condition and Safety (Part I). Journal of Highway and Transportation Research and Development, 2014, 8(2): 99-104.

链接本文:

http://manu27.magtech.com.cn/Jwk_gljtkj_en/CN/ 或 http://manu27.magtech.com.cn/Jwk_gljtkj_en/CN/Y2014/V8/I2/99

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