STATISTICAL ANALYSIS OF MARINE ACCIDENTS IN THE STRAIT OF İSTANBUL USING CHI-SQUARE TEST

Abstract

The Turkish Straits which comprise the Strait of İstanbul, the Strait of Çanakkale and the Sea of Marmara connect the Aegean and Mediterranean Seas and the Black Sea. The Straits are one of the most hazardous and crowded waterways in the world. The Straits are important from the point of international politics and commerce. The aim of the study is to analyse the accidents that occurred in the Strait of İstanbul from the implementation of the Maritime Traffic Regulations for the Turkish Straits and the Marmara Region in 1994 until 2019 using frequency distribution, Chi Square) and Cramer’s V Tests. The main findings of the study have given as follows; the cargo ships were the most involved in the accident; accidents are mostly collision and respectively grounding; the most accident has been occurred in the hours 20:00-24:00, main reason of accidents is human error and a total of 71.5% of the ships involved in the accident have not taken a pilot in the Strait of İstanbul. There is a statistically significant relationship between accident type and accident year; between accident type and the ship types involved in the accident and between accident type and whether the ship involved in the accident had a pilot; relationship between ship type involved in the accident and whether to take a pilot or not. At the conclusion of the study suggestions are proposed to provide safety of environment and navigation in the Strait of İstanbul.

Keywords

• The Strait of İstanbul
• Marine accidents
• Accident analysis
• Collision
• Maritime pilot

References

1. Akten, N. (2003). “The Strait of İstanbul (Strait of İstanbul): The seaway separating the continents with its dense shipping traffic.”, Turkish Journal of Marine Sciences, Vol. 9, No. 3, pp. 241.
2. Akten, N. (2006), “Shipping accidents: a serious threat for marine environment”. J. Black Sea/Mediterranean Environment, Vol. 12, pp. 297.
3. Altan, Y.C. and Otay, E.N. (2017). “Mapping of Ship Collision Probability using AIS data”, in International Workshop on Nautical Traffic Models_ International Maritime Association of the Mediterranean 2017 proceedings of the international conference in Lisbon.
4. Altan, Y.C. and Otay, E.N. (2017). Maritime traffic analysis of the Strait of Istanbul based on AIS data. J. Navig. Vol. 70, N0.6, pp. 1367–1382.
5. Aslan, M. and Otay, E.N. (2021). "Exchange of water and contaminants between the Strait of Istanbul and the Golden Horn”. Ocean Engineering, Vol. 230, pp.108983.
6. Bal, C., Er, F. and Sönmez, H. (2009). “A Review of Statistical Techniques for 2x2 and RxC Categorical Data Tables in SPSS”. Journal of Pediatric Sciences, pp.3.
7. Başar, E., Köse, E. and Güneroğlu, A. (2006). “Finding risky areas for oil spillage after tanker accidents at İstanbul Strait”. International Journal of Environment and Pollution, Vol.27, No.4, pp.388.
8. Başkent University Centre for Strategic Resarch (BASKENT-SAM) (2021). Montreaux Convention. http://sam.baskent.edu.tr/belge/Montreux_ENG.pdf. [Accessed 08 Feb 2021].

9. Bayar, N., Ozum, S. and Yılmaz, H. (2008). Analysis of Accidents in İstanbul Strait. The 16th Conference of the International Maritime Lecturers’ Association, IMLA, İzmir, Turkey, pp. 397-398.
10. Biochemia Medica (2013). “The Chi Square Independence Test”, The journal of Croatian Society of Medical Biochemistry and Laboratory Medicine, http://www.biochemia-medica.com/2013/23/143, [Accessed 09 February 2021].
11. Bucak, U., Arslan T., Demirel, H and Balın, A. (2021). Analysis of Strategies to Reduce Air Pollution from Vessels: A Case for the Strait of Istanbul. Journal of ETA Maritime Science (JEMS), Vol.9, No.1, pp.23.
12. Directorate General of Coastal Safety (KEGM) (2021),” Vessel Traffic and Pilotage Services”, https://www.kiyiemniyeti.gov.tr/vessel_traffic_and_pilotage_services, [Accessed 22 February 021].
13. Ece, N.J. (2012). “Analysis Of Ship Accidents in The Strait of İstanbul”. Dokuz Eylül Üniversitesi Denizcilik Fakültesi Dergisi, Vol.4, No.2, pp.1,6.
14. Erol, S., Demir, M., Bayram Çetişli,B. and Eyüboglu, E. (2017). “Analysis of Ship Accidents in the İstanbul Strait Using Neuro-Fuzzy and Genetically Optimised Fuzzy Classifiers”. The Journal of Navigation, Vol.71, No.2, pp. 1-3.
15. Görçün, Ö.F. and Burak, S. Z. (2015), “Formal Safety Assessment for Ship Traffic in the Istanbul Straits”. Procedia - Social and Behavioral Sciences, Vol..207, pp.260.
16. Habertürk (2019). Boğazı'nda tekne yangını https://www.haberturk.com/son-dakika-istanbul-bogazi-nda-tekne-yangini-2506216 [Accessed 18 February 2021].
17. Harding University, Nominal Measures Of Correlation: Phi, The Contingency Coeffıcient And Cramer's V, http://www.harding.edu/sbreezeel/460%20files/statbook/chapter15.pdf. [Accessed 26 March 2021].
18. Independent Türkçe (2019). “İstanbul Boğazı’nda karaya oturan gemi kurtarıldı”, https://www.indyturk.com/node/109666/haber/istanbul-bo%C4%9Faz%C4%B1%E2%80%99nda-karaya-oturan-gemi-kurtar%C4%B1ld%C4%B1, [Accessed 06 March 2021].
19. International Maritime Organization (IMO) (2021). Vessel Traffic Services, https://www.imo.org/en/OurWork/Safety/Pages/VesselTrafficServices.aspx, [Accessed 21 May 2021].
20. İnan, Y. (2001). “The Current Regime of The Turkısh Straits”, Journal of Internatiıonal Affairs, Vol.6, No. 1, pp.3, http://repository.bilkent.edu.tr/bitstream/handle/11693/51482/The_Turkish_straits.pdf?sequence=3 [Accessed 22 February 2021].
21. Koldemir, B. (2009). Seyir Güvenliği Açısından İstanbul Boğazı’nda Riskli Bölgelerin Belirlenmesi; Kaza Kara Noktalarının Güncellenmesi, Dokuz Eylül Üniversitesi Denizcilik Dergisi, Vol. No. 1, pp.25.
22. Korçak, M. and Balas, C. (2020). Reducing the probability for the collision of ships by changing the passage schedule in İstanbul Strait. The International Journal of Disaster Risk Reduction (IJDRR), Vol.48, pp. 101593.
23. Köse, E., Başar E., Demirci, E., Güneroğlu, A. and Erkebay, Ş. (2003). “Simulation of maritime traffic in İstanbul Strait”. Simulation Modelling Practice and Theory, Vol. 11, pp. 606.
24. McHugh, M.L. (2013). “The Chi-square test of independence”, Biochemia Medica, Vol. 23, No.2, pp.143
25. Otay, E.N. and Tan, B. (1998). Stochastic Modeling of Tanker Traffic through Narrow Waterways, Proc. 1stInternational Conference on Oil Spills in the Mediterranean and Black Sea Regions, İstanbul,Turkey, pp. 85.
26. Özdemir, U. and Güneroğlu (2015). A. Strategic Approach Model for Investigating the Cause of Maritime Accidents. Promet-Traffic & Transportation Research, Vol.27, No.2, pp.115, 121-122.
27. Tenker, S. (2020). “İstanbul Boğazı’ndaki kazalar ve Kanal İstanbul” Denizcilik Dergisi, http://www.denizcilikdergisi.com/yazarlar/kapt-sedat-tenker/istanbul-bogazindaki-kazalar-ve-kanal-istanbul/ [Accessed 09 February 2021].
28. The Republic of Turkey Ministry of Transport and Infrastructure of (UBAK), Türk Boğazları Gemi Geçiş İstatistikleri (Maritime Traffic in the Turkish Straits), https://denizcilikistatistikleri.uab.gov.tr/turk-bogazlari-gemi-gecis-istatistikleri [Accessed 08 Feb 2021].
29. The Republic of Turkey Ministry of Transport and Infrastructure of (UBAK), Denizcilik İstatistikleri (Shipping Statistics), https://atlantis.udhb.gov.tr/istatistik/gemi_gecis.aspx [Accessed 06 June 2018].
30. The Republic of Turkey Ministry of Transport and Infrastructure of (UBAK) Main Search-Rescue Coordination Center(2019). General Directorate of Maritime Trade The Turkish Straits Vessel Traffic Statistics, http://aakkm.udhb.gov.tr, [Accessed 08 July 2016].
31. The Republic Of Turkey Ministry of Transport And Infrastructure Directorate General of Coastal Safety (KEGM) (2019). User’s Guıde of Turkısh Straıts Vessel Traffic Servıce, https://kiyiemniyeti.gov.tr/Data/1/Files/Document/Documents/9S/6R/yY/wu/TSVTS_User_Guide_21.05.20.pdf, [Accessed 22 May 2021].
32. The Republic of Turkey Ministry of Transport And Infrastructure Directorate Deniz mevzuat, 1998, https://denizmevzuat.uab.gov.tr› guidelines › tur... [Accessed 20 May 2021].
33. Turkish Maritime Pilots Association, List of Casualties Which Occured in the Strait of İstanbul During the Period 01/07/1994 to 31/08/2000, available at:http://www.turkishpilots.org [accessed 06 February 2004].
34. TurkSail (2019), “İstanbul Boğazı'nda garip bir kaza”, http://www.turksail.com/genel-haberler/16575-istanbul-bogaz-nda-garip-bir-kaza [Accessed 10 July 2016].
35. Uçan, E. and Nas, S. (2015). “Analysing Istanbul Strait Maritime Pilot Capacity by Simulation Technique”, The Journal Of Navigation,Vol. 69, No.4, pp.816-817.
36. Uğurlu, Ö, Erol, S. and Başar, E. (2016). “The analysis of life safety and economic loss in marine accidents occurring in the Turkish Straits. Maritime Policy&Management,Vol.43, No.3, pp.367.
37. Uğurlu, Ö., Kaptan, M., Kum S. and Yıldız, S. (2017). “Pilotage services in Turkey; key issues and ideal pilotage”. Journal of Marine Engineering & Technology,Vol.16, No.2, pp. 51.
38. Ulusçu, Ö. S., Özbaş, B., Altıok, T. and Or, İ. (2009). “Risk Analysis of the Vessel Traffic in the Strait of İstanbul”, Risk Analysis, Vol. 29, No.10, pp.1454.
39. United Nations Law of the Sea (National legislation), https://www.un.org/Depts/los/LEGISLATIONANDTREATIES/PDFFILES/TUR_1994_Regulations.pdf, [Accessed 22 May 2021].
40. Yates, D., Moore, Moore, D. and McCabe, G. (1999). The Practice of Statistics (1st Ed.), W.H. Freeman, New York:, USA, pp. 734.
41. Yurtören, C. (2004). A Study on Maritime Traffic Management in the Strait of İstanbul., PhD Thesis. Kobe University, Maritime & Transportation System Science, Kobe, Japan.