Empirical Acoustic Model for Asphalt Surface Mixes
In this paper, an empirical acoustic model was developed for four asphalt surface mixes, including conventional dense-graded asphalt concrete (DGAC), open-graded asphalt concrete (OGAC), rubberized open-graded asphalt concrete (RAC-O), and rubberized gap-graded asphalt concrete (RAC-G). Tire/pavemen...
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| Format: | Article |
| Language: | English |
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Riga Technical University Press
2013-09-01
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| Series: | The Baltic Journal of Road and Bridge Engineering |
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| Online Access: | https://bjrbe-journals.rtu.lv/article/view/3564 |
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| author | Bin Yu Qing Lu |
| author_facet | Bin Yu Qing Lu |
| author_sort | Bin Yu |
| collection | DOAJ |
| description | In this paper, an empirical acoustic model was developed for four asphalt surface mixes, including conventional dense-graded asphalt concrete (DGAC), open-graded asphalt concrete (OGAC), rubberized open-graded asphalt concrete (RAC-O), and rubberized gap-graded asphalt concrete (RAC-G). Tire/pavement noise data were collected and converted from in-service flexible pavements using an on-board sound intensity (OBSI) method, for four consecutive years. Because the panel structured noise data contain potential violations to basic assumptions of ordinary least square models, several econometric techniques were used to address the violations and develop rational models. Specifically, instrumental variables and a multinomial logit (MNL) model were used to address endogeneity, and a two-way randomeffect model was used to capture the unobserved heterogeneity. The estimated model suggests that tire/pavement noise increases with pavement age and mean profile depth (MPD), and decreases with air-void content of surface mixes. The noise levels of the four asphalt surface mixes rank as: RAC-O < OGAC < RAC-G < DGAC. |
| format | Article |
| id | doaj-art-384d8973b2c44ab98c229cdeb41acae8 |
| institution | Kabale University |
| issn | 1822-427X 1822-4288 |
| language | English |
| publishDate | 2013-09-01 |
| publisher | Riga Technical University Press |
| record_format | Article |
| series | The Baltic Journal of Road and Bridge Engineering |
| spelling | doaj-art-384d8973b2c44ab98c229cdeb41acae82025-01-02T17:28:11ZengRiga Technical University PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882013-09-018315115710.3846/bjrbe.2013.191973Empirical Acoustic Model for Asphalt Surface MixesBin Yu0Qing Lu1School of Transportation, Southeast University, Nanjing, 210096 Jiangsu, ChinaDept of Civil and Environmental Engineering, University of South Florida, 4202 E. Fowler Avenue, Tampa, 33620 FL, USAIn this paper, an empirical acoustic model was developed for four asphalt surface mixes, including conventional dense-graded asphalt concrete (DGAC), open-graded asphalt concrete (OGAC), rubberized open-graded asphalt concrete (RAC-O), and rubberized gap-graded asphalt concrete (RAC-G). Tire/pavement noise data were collected and converted from in-service flexible pavements using an on-board sound intensity (OBSI) method, for four consecutive years. Because the panel structured noise data contain potential violations to basic assumptions of ordinary least square models, several econometric techniques were used to address the violations and develop rational models. Specifically, instrumental variables and a multinomial logit (MNL) model were used to address endogeneity, and a two-way randomeffect model was used to capture the unobserved heterogeneity. The estimated model suggests that tire/pavement noise increases with pavement age and mean profile depth (MPD), and decreases with air-void content of surface mixes. The noise levels of the four asphalt surface mixes rank as: RAC-O < OGAC < RAC-G < DGAC.https://bjrbe-journals.rtu.lv/article/view/3564on-board sound intensityasphalt mixespanel dataeconometricsempirical modelnoise |
| spellingShingle | Bin Yu Qing Lu Empirical Acoustic Model for Asphalt Surface Mixes The Baltic Journal of Road and Bridge Engineering on-board sound intensity asphalt mixes panel data econometrics empirical model noise |
| title | Empirical Acoustic Model for Asphalt Surface Mixes |
| title_full | Empirical Acoustic Model for Asphalt Surface Mixes |
| title_fullStr | Empirical Acoustic Model for Asphalt Surface Mixes |
| title_full_unstemmed | Empirical Acoustic Model for Asphalt Surface Mixes |
| title_short | Empirical Acoustic Model for Asphalt Surface Mixes |
| title_sort | empirical acoustic model for asphalt surface mixes |
| topic | on-board sound intensity asphalt mixes panel data econometrics empirical model noise |
| url | https://bjrbe-journals.rtu.lv/article/view/3564 |
| work_keys_str_mv | AT binyu empiricalacousticmodelforasphaltsurfacemixes AT qinglu empiricalacousticmodelforasphaltsurfacemixes |