ACCURACY REQUIREMENTS OF A LOW-SPEED PROFILER AND ITS VERIFICATION PERSPECTIVES FOR SURFACE ROUGHNESS EVALUATION
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- TOMIYAMA Kazuya
- 北見工業大学 工学部
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- KAWAMURA Akira
- 北見工業大学 工学部
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- EGUCHI Masayuki
- 株式会社高速道路総合技術研究所
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- TERADA Masaru
- 国立研究開発法人土木研究所
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- WATANABE Kazuhiro
- 国立研究開発法人土木研究所
Bibliographic Information
- Other Title
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- 平坦性評価に要する低速プロファイラの測定精度とその検証に関する視点と方法
- ヘイタンセイ ヒョウカ ニ ヨウスル テイソク プロファイラ ノ ソクテイ セイド ト ソノ ケンショウ ニ カンスル シテン ト ホウホウ
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Description
Smoothness assurance and performance evaluation of a pavement has been a critical matter of road administrators with rising the demands of maintenance and rehabilitation of road assets. As a result, accuracy verification of a profile measurement has become a significant concern of profiler users. This study examines accuracy requirements of a low-speed profiler and its verification perspectives in terms of the roughness evaluation of a pavement in the construction control level. According to the results, the certificated profile needs the profile agreement based on the cross-correlation function to at least 0.9 for the overall wavelength and 0.8 for the wavelength range of 1.6-25 m, the IRI (International Roughness Index) error no greater than 5%, and the gain error no greater than 10% for the wavelength range of 1.6-50 m against a Class 1 reference profiler. Finally, as a recommendation assuming the same accuracy between the portability and repeatability, a low-speed profiler should has a profile agreement to at least 0.95 (overall) and 0.9 (wavelength range 1.6-25 m), an IRI error no greater than 2.5%, and a gain error no more than 5% (wavelength range 1.6-50 m) for satisfying each criterion, respectively.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
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Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) 72 (3), I_27-I_35, 2016
Japan Society of Civil Engineers