Busan Metropolitan City (2011). Busan metropolitan city traffic maintenance basic plan (2012~2031) (in Korean).Busan Metropolitan City (2011). Busan metropolitan city traffic maintenance basic plan (2012~2031) (in Korean).

Changwon City (2013). Changwon city traffic maintenance basic plan (in Korean).Changwon City (2013). Changwon city traffic maintenance basic plan (in Korean).

Cowie, J. (2002). “Acquisition, efficiency and scale economies : An Analysis of the British bus industry.” Transport Reviews, Vol. 22, No. 2, pp. 147-157.10.1080/014416400110076267Cowie, J. (2002). “Acquisition, efficiency and scale economies : An Analysis of the British bus industry.” Transport Reviews, Vol. 22, No. 2, pp. 147-157.10.1080/014416400110076267

Available at: http://www.busan.go.krAvailable at: http://www.busan.go.kr

Available at: http://www.busanpa.comAvailable at: http://www.busanpa.com

Available at: http://www.gsnd.net Available at: http://www.gsnd.net

Available at: https://www.spidc.go.kr Available at: https://www.spidc.go.kr

Ministry of Land, Infrastructure and Transport (2013). Guidelines for assessing investment in transport facilities (5th change) (in Korean).Ministry of Land, Infrastructure and Transport (2013). Guidelines for assessing investment in transport facilities (5th change) (in Korean).

Ministry of Land, Infrastructure and Transport (2013). Road capacity handbook (in Korean).Ministry of Land, Infrastructure and Transport (2013). Road capacity handbook (in Korean).

Ministry of Ocean and Fisheries (MOT) (2013). 2nd comprehensive port development complex plan and port complex designation (change) (in Korean). Ministry of Ocean and Fisheries (MOT) (2013). 2nd comprehensive port development complex plan and port complex designation (change) (in Korean).

Ministry of Ocean and Fisheries (MOT) (2013). Busan port basic plan change notification (in Korean).Ministry of Ocean and Fisheries (MOT) (2013). Busan port basic plan change notification (in Korean).

The Korea Transport Institute (KOTI) (2014). National traffic survey and DB construction project in 2014 (nationwide)(in Korean).The Korea Transport Institute (KOTI) (2014). National traffic survey and DB construction project in 2014 (nationwide)(in Korean).