〇Yoshichika Takai¹, Shinichi Kawakami¹, Eidai Kadota¹ (1.Yamaguchi Office of River and National Highway)

〇Daisuke Akagi¹, Yusuke Kanda² (1.Hiroshima University Graduate School of Advanced Science and Engineering Orientation Schedule, 2.National Institute of Technology (KOSEN), Kure College, Civil and Environmental Engineering)

〇Shuji Takamori¹, Tatsuya Sugimoto¹, Masazumi Amakata¹ (1.Yachiyo Engineering Co.,Ltd)

〇Takaharu Furusawa¹, Syou Satou¹ (1.EXPRESS HIGHWAY RESEARCH FOUNDATION OF JAPAN)

〇Sota Okumura¹, Syoichiro Nakayama¹, Hiromichi Yamaguchi¹ (1.Kanazawa university graduate school of natural science and technology)