Frequency Analysis of Ship Collision and Its Impact on the Fulfillment of Supporting Facilities and Route Changes Due to Implementation of Sunda Strait TSS

The Government of Indonesia has adopted such routing measures namely Traffic Separation Scheme (TSS) for the Sunda Strait and the Lombok Strait from the decision of the plenary session of the International Maritime Organization (IMO). TSS is intended to reduce the frequency of ship accidents in a certain area. This research to identify the impact of the implementation TSS in the Sunda Strait on the frequency of ship collisions. So in this research, a ship collisions frequency study was conducted for the implementation of TSS. In the process of calculating the frequency of ship collisions using the IWRAP method in the form of IWRAP MK II software, and to calculate the estimated increase in ship fuel consumption using the Trozzi method in calculating changes in shipping distance using the assistance of the Google Earth virtual program and Triangle Ball method. Based on the calculation of the frequency of ship collisions in the Sunda Strait using the IWRAP software, the results of the frequency of Head-On collisions are 0.003149 per year, Overtaking is 0.070270 per year, and Crossing is 0.079589 per year after the TSS was implemented. However, during the implementation of the TSS by the government of Indonesia, several expenses need to be made to support this TSS implementation. In the first category, the government needs to do the investment to make some new facilities such as Vessel Traffic Systems (VTS), Coast Station (SROP), Marine Aids to Navigation (SBNP) and Electronic Maps worth is IDR 82,607,950,000.00. Another aspect is seen from the shipping company's point of view who have to spend more money due to the additional fuel consumption caused by the shipping route changes affected by TSS design is IDR 77,086,256,000.00 per year.