Busan Metro (2023). General status and company regulations of Busan metro, Available at: https://www.humetro.busan.kr/homepage/default/page/subLocation.do?menu_no=1001060204 (Accessed: August 10, 2023) (in Korean).

Cho, H. and Kim, S. (2022). “A study on analysis of risks related to overseas railroad private-public partnership projects.” KSCE Journal of the Korean Society of Civil Engineers, KSCE, Vol. 42, No. 6, pp. 887-892, https://doi.org/10.12652/Ksce.2022.42.6.0887 (in Korean).

Daegu Metro (2023). General status and company regulations of Daegu metro, Available at: https://www.dtro.or.kr/index.do? menu_id=00000414 (Accessed: August 10, 2023) (in Korean).

Data Bridge Market Research (2017). Global Urban Rail Transit Market - Industry Trends and Forecast to 2028.

European Rail Supply Industry Association (UNIFE) (2020). World Rail Market Study forecast 2020 to 2025.

Hu, S. (2015). “Seoul Metropolitan City’s urban railway overseas project implementation experience and future strategy.” World & cities, The Seoul Institute, Vol. 5, pp. 80-81 (in Korean).

Inquirer (2018). DOTr blames former maintenance provider BURI for MRT-3 woes, Available at: https://newsinfo.inquirer.net/963537/mrt-3-dotr-transportation-maintenance-provider-buri-problems-glitches (Accessed: September 5, 2023).

Keolis Group (2022). Statement of Non Financial Performance 2022, Available at: https://www.keolis.com/en/newsroom-en /news/statement-of-non-financial-performance-2022/(Accessed: January 13, 2023).

Mass Transit Railway (MTR) (2021). Annual Report 2021, Available at: https://www.mtr.com.hk/en/customer/main/index.html (Accessed: January 13, 2023).

Mass Transit Railway (MTR) (2022). Capability Statement 2022 - International Consultancy, Available at: https://www.mtr.com.hk/en/customer/main/index.html (Accessed: January 13, 2023).

Ministry of the Interior and Safety (2022). Local public institution innovation guidelines, Local public institution management system reform direction (in Korean).

RATP Dev (2023). Capacity Statement 2022 - International Consultancy, Available at: https://www.ratpdev.com/sites/default/files (Accessed: January 13, 2023).

Régie Autonome des Transports Parisiens. Annual Report 2022, Available at: https://ratpgroup.com/wp-content/uploads/(Accessed: January 13, 2023).

Seoul Metro (2023). General status and company regulations of Seoul metro, Available at: http://www.seoulmetro.co.kr/kr/page. do?menuIdx=512 (Accessed: August 10, 2023) (in Korean).

Seoul Metropolitan City (2014). Consulting service report on major areas of municipal administration (in Korean).