NAVIGATION CHANNEL WIDTH CALCULATIONS FOR MALAYSIA'S DRAWBRIDGE BASED ON THE PIANC METHOD
Keywords:
Hazard, risk, navigation channel, draw bridge, safetyAbstract
This study concerns the risks of navigation of the marine traffic channel for the first Malaysian iconic Terengganu Drawbridge in Duyong Island, Terengganu. According to the Permanent International Association of Navigation Congresses (PIANC) (2014), insufficient navigation widths can lead to increased risk of navigation. In maritime logistics, everything has an element of hazard and risk, thus safety is very important when working in the maritime industry. The objective of this study is to calculate the safest width of a navigation channel which could assist in mitigating the risks and help to prevent a major accident. The methodology used by this study to calculate the width of the navigation channel uses formulas advocated by the PIANC harbour approach channels design guidelines report no 121-2014. The results of the calculations will then be compared to the width of the existing channel. The factors that are included in this calculation formula include vessel designs that regularly navigate the area, wind, and current speeds, and tidal heights. Based on the study findings, the total width required for the safe navigation of the drawbridge channel calculated using the PIANC calculation method is 37 meters. The existing navigation channel is only 25 meters which is a difference of 12 meters. This study however found that the existing channel is still safe for marine navigation even with the smaller width. Due to other factors including the frequency.
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