1. Jiangxi Transportation Consulting Company, Nanchang Jiangxi 330008, China;
2. Nanchang County Highway Management Station, Nanchang Jiangxi 330200, China;
3. Key Laboratory of Road Safety, Research Institute of Highway, Ministry of Transport, Beijing 100088, China
Retroreflectivity and Deterioration Characteristics of Sheeting Used for In-Service Guide Signs
HUANG Wen-hong1, HU Li-qin2, JIANG Ming3
1. Jiangxi Transportation Consulting Company, Nanchang Jiangxi 330008, China;
2. Nanchang County Highway Management Station, Nanchang Jiangxi 330200, China;
3. Key Laboratory of Road Safety, Research Institute of Highway, Ministry of Transport, Beijing 100088, China
摘要To determine the deterioration characteristics of the retroreflective sheeting used for guide signs, this study examined 12-year (1998-2010) observation data on 230 guide signs located in a test square. On the basis of the data, the deterioration curves of sheeting materials were calculated and the mathematical deterioration model for retroreflective sheeting was accordingly constructed. In determining the most suitable reference model, we chose among a linear mathematic model, a second-order polynomial model, and a cubic curve regression model. It was then applied to the signs found along Jiangxi Yongwu expressway in China. This research is expected to provide guidance for the maintenance of traffic signs in our country.
Abstract:To determine the deterioration characteristics of the retroreflective sheeting used for guide signs, this study examined 12-year (1998-2010) observation data on 230 guide signs located in a test square. On the basis of the data, the deterioration curves of sheeting materials were calculated and the mathematical deterioration model for retroreflective sheeting was accordingly constructed. In determining the most suitable reference model, we chose among a linear mathematic model, a second-order polynomial model, and a cubic curve regression model. It was then applied to the signs found along Jiangxi Yongwu expressway in China. This research is expected to provide guidance for the maintenance of traffic signs in our country.
黄文红, 胡丽琴, 姜明. 自然环境中指路标志反光膜逆反射率和衰减特征研究[J]. Journal of Highway and Transportation Research and Development, 2013, 7(2): 88-93.
HUANG Wen-hong, HU Li-qin, JIANG Ming. Retroreflectivity and Deterioration Characteristics of Sheeting Used for In-Service Guide Signs. Journal of Highway and Transportation Research and Development, 2013, 7(2): 88-93.
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