This study aims to identify the structure of the sea transportation network in Indonesia, which is hub and spoke network and multicell network as the types of the common transportation network in the logistics system and to analyze the existing network models. This study attempted to identify structures of the existing sea shipping network of liner companies in Indonesia. The method used was the descriptive method, which involved observational studies of people in a sea shipping environment. They were surveyed and interviewed to collect the necessary information and analyze the existing records of liner companies. Secondary data were given by the Directorate General Sea and Transportation of the Minister of Transportation of Indonesia. The results showed that more than 80% of liner companies in Indonesia implemented the hub and spoke call network, while others implemented the multicell network. Indonesia should develop an integrated sea shipping network model to optimize the national logistic system as a maritime country. This study rendered useful insights and suggestions for Indonesian shipping network companies.

1. J. Zohil and M. Prijon, “The MED rule: The interdependence of container throughput and transshipment volumes in the Mediterranean ports,” Maritime Policy & Management, vol. 26, no. 2, pp. 175–193, 1999. https://dx.doi.org/10.1080/030888399286998
2. T. C. Lirn, H. A. Thanopoulou, M. J. Beynon and A. K. C. Beresford, “An application of AHP on transhipment port selection: A global perspective,” Maritime Economics & Logistics, vol. 6, no. 1, pp. 70-91, 2004. https://dx.doi.org/10.1057/palgrave.mel.9100093
3. T. E. Notteboom, “The time factor in liner shipping services,” Maritime Economics & Logistics, vol. 8, no. 1, pp. 19-39, 2006. https://dx.doi.org/10.1057/palgrave.mel.9100148
4. D. Ronen, “Cargo ships routing and scheduling: Survey of models and problems,” European Journal of Operational Research, vol. 12, no. 2, pp. 119-126, 1983. https://dx.doi.org/10.1016/0377-2217(83)90215-1
5. Z. Yang and K.Chen, “Optimization of shipping network of trunk and feeder line for inter-regional and intra-regional container transport,” Journal of the Eastern Society for Transportation Studies, vol. 8, pp. 694-705, 2010.
6. K. H. Kjeldsen, “Classification of ship routing and scheduling problems in liner shipping,” INFOR: Information Systems and Operational Research, vol. 49, no. 2, pp. 139-152 2011. https://dx.doi.org/10.3138/infor.49.2.139
7. C. I. Hsu and Y. P. Hsieh, “Direct versus terminal routing on a maritime hub-and-spoke container network,” Journal of Marine Science and Technology, vol. 13, no. 3, pp. 209-217, 2005.
8. Bisnis Indonesia. (2014). Solving logistic sector complexity – Bisnis Indonesia, [Online]. Available: https://goo.gl/f6yAiX
9. C.C .Chou, “A model for shipping companies to choose the seaport with lower transshipment cost,” IE(I) J MR, vol. 88, pp. 3–7, 2008.
10. Z. Kemény, A. Ilie Zudor, J. Fülöp, A. Ekárt, C. Buckingham and P. Welch, “Multiple-Participant hub and spoke logistics networks: Challenges, solutions and limits,” in 13th International MITIP Conference proceeding on the Modern Information Technology in the Innovation Processes of the Industrial Enterprises, Trondheim, Norvégia, June 22–24, 2011, pp. 20–29.
11. M. Prakkana. (2010). Port feeder indonesia only? [online]. Avaliable: https://goo.gl/9Vf1GE
12. T. F. Alfenza and T. Achmadi, “Pattern determination and distribution centre region-based staples to Islands,” Jurnal Teknik ITS, vol. 1, no. 1, pp. E21-E24, 2012.
13. A. Imai, K. Shintani and S. Papadimitriou, “Multi-port vs. Hub-and-Spoke port calls by containerships,” Transportation Research Part E: Logistics and Transportation Review, vol. 45, no. 5, pp. 740-757, 2009. https://dx.doi.org/10.1016/j.tre.2009.01.002
14. Indonesian National Logistics Team, “Indonesia Experience in Developing the National Logistics Blueprint,” in Building the ASEAN Economic Community: Better Logistics for Improved Connectivity, Colombo, 5-7 June, 2013.
15. State Secretariat for Economic Affairs (SECO). (2013). State of logistics Indonesia, Avaliable: https://goo.gl/y2YGhb
16. O. Polat, “Designing liner shipping feeder service networks in the new era of mega containerships,” Doctoral dissertion, Technical University of Berlin, Berlin, 2013.
17. H. B. Bendall and A. F. Stent, “A scheduling model for a high speed containership service: A hub and spoke short-sea application,” International Journal of Maritime Economics, vol. 3, no. 3, pp. 262-277, 2001. https://dx.doi.org/10.1057/palgrave.ijme.9100018
18. A. Imai, E. Nishimura, S. Papadimitriou and M. Liu, “The economic viability of container mega-ships,” Transportation Research Part E: Logistics and Transportation Review, vol. 42, no. 1, pp. 21-41, 2006. https://dx.doi.org/10.1016/j.tre.2004.07.002
19. Z. Musfiroh, I. Vanany and D. Hartanto, “Model optimization of container shipping system with a hub-and-spoke to determine the time to achieve the maximum capacity of the Port of New Sorong,”Unpublished Paper, Institute of Technology (ITS), Surabaya, 2006.
20. C. Chao and Y. Wei, “Process analysis in container shipping network structure form change,” International Journal for Traffic and Transport Engineering, vol. 2, no. 1, pp. 11-21, 2012.

C. Natalia, B. E. Aldi, S. P. Dyas and A. Silalahi, “Sea shipping network structures identification and analysis in Indonesia,” International Journal of Technology and Engineering Studies, vol. 2, no. 2, pp. 38-46, 2016.