1. Regulatory Policy Research Center, CG Inside Co., Ltd., 122 Mapo-daero, Mapo-gu, Seoul 04213, Republic of Korea
2. Department of Public Administration, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon 16499, Republic of Korea
3. Department of Mechanical Engineering, Hannam University, 70 Hannam-ro, Daedeok-gu, Daejeon 34430, Republic of Korea
4. Department of Safety Engineering, Fire Disaster Prevention Research Center, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea