@article {Ookura:2011:0736-2935:4047, title = "Survey study on the transition of sound power level and spectrum of road vehicle noise in expressway porous drainage asphalt pavement", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "2011", volume = "2011", number = "3", publication date ="2011-07-04T00:00:00", pages = "4047-4054", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2011/00002011/00000003/art00057", keyword = "35.5.5, 11.7.1", author = "Ookura, Takashi and Yamamoto, Minoru and Osafune, Toshikazu and Ishikawa, Kenichi and Ueta, Tomotaka and Noguchi, Eiji and Iwase, Teruo and Yamamoto, Kohei", abstract = "", }