References
- An, J.W. (2016), "Developments of performance-based assessment technique for existing tunnels", Journal of Korean Tunnel Underground Space Association.
- American Society of Civil Engineers. (2013), "2013 Report Card for America's Infrastructure", American Society of Civil Engineers, pp. 113-128.
- Kang, S.H., Lee, Y.H., (2013), "Understanding the Infrastructure Assessment System in Developed Countries and Introduction Plan", Construction & Economy Research Institute of Korea, pp. 49.
- Na, S.I. (1999), "A Study on the Contents of General Agricultural Education for Elementary, Middle and High School Students in the Information Society", Daegu National University of Education.
- Ewing, D.M. (1992), "Future CompetenciesNeeded in the Preparation of Secretaries in the State of Illinois Using the Delphi Technique", Ph. D. Dissertatio, University of Iowa.
- Ziglio. (1996), "The Delphi method and itscontribution to decision-making. M. Adler & E. Ziglio(Eds). Gazing into the oracle: the Delphi method and its application to social policy and public health", Jessica Kingsley Publishers.
- Kwon, T.I. (2008), "Study on Drawing Priority of the Influence Factors of Tourist Resort Remodeling Business: Delphi Technic & Analytic Hierarchy Process", Sejong University.
- Lawshe. (1975), "A Quatitative approach to content validity. Personnel Psychology", Content Validity, pp. 563-575.
- Upton, Graham (1996), "Understanding Statistics", Oxford Press.
- Sung, J.H. (2013), "A special tunnel excavation (shield tunnel) performance criteria and maintenance manual development", Korea Infrastructure Safety and Health,
- Sadao Kimura, Takashi Kitani, Atsushi Koizumi. (2012), "Development of Performance-Based Tunnel Evaluation", Journal of Transportation Technologies, pp. 119-128.
- Ministry of Land, Transport and Maritime Affairs (2011), "Guideline of Safety and in-depth safety inspection".
- Ministry of Construction and Transportation (2001), "Establishment of standards for evaluating the condition of facilities (Tunnels)".