About the Authors

Kaechang Park

park.kaechang@kochi-tech.ac.jp

Affiliation Traffic Medicine Laboratory, Research Organization for Regional Alliance, Kochi University of Technology, Kami-shi, Kochi, Japan

Yoshinori Nakagawa

Affiliation Department of Management, Research Organization for Regional Alliance, Kochi University of Technology, Kami-shi, Kochi, Japan

Yasuhiko Kumagai

Affiliation Regional ITS Social Laboratory, Research Organization for Regional Alliance, Kochi University of Technology, Kami-shi, Kochi, Japan

Mitsuhiro Nagahara

Affiliation Regional ITS Social Laboratory, Research Organization for Regional Alliance, Kochi University of Technology, Kami-shi, Kochi, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KP YK. Performed the experiments: YN MN. Analyzed the data: KP YN. Contributed reagents/materials/analysis tools: MN. Wrote the paper: KP.