Collision/RDC



Collisions and Groundings (2011) 

  Factors fuelling the upwards pressure on hull premiums (TSC Letter 1-2006)

  Collision avoidance, Narrow margins leave no room for error (TSC Letter 2-2005)

  Collisions in majority amongst expensive claims (TSC Letter 2-2004)

  Collisions cause costly claims (TSC Letter 3-2002)

  Human error - a common cause in collisions (TSC Letter 3-2002)

  This is AIS (TSC Letter 1-2001)



Problem

Most collisions occur as a result of an inadequate lookout or unsatisfactory radar watch. The main cause in several of these events is fatigue. The handing over of watch is also a risk factor. Close quarter situations often occur due to late, unsatisfactory or improper alterations of course and speed.

Facts and Findings

  • Most collisions occur whilst ship is full away on passage and in fair weather and in calm or slight seas.

  • Many instances occur where VHF contact was made, but where information was exchanged with incorrect vessel.

  • Overtaking in narrow passages and not following rules of separation zones have an high occurrence rate.

Preventive measures

  • The crew must understand the importance of adherence to the bridge management procedures.

  • A proper lookout must be maintained at all times, along with efficient reporting to watch keeping officer.

  • The lookout should not be occupied with activities that may impede the lookout.

  • Proceed at safe speed and take into consideration visibility, traffic density, manoeuvrability, weather conditions and limitations of the radar.

  • Every effort must be made to ascertain if a close quarters situation is developing – determine by repeated systematic observations any change in radar and compass bearings in addition to any automatic or manual radar plotting.

  • Refrain from using VHF to establish passing with another ship, as an agreement could be made with wrong vessel.

  • If obliged to give way, take early and substantial action to keep well clear.

  • Slowing down is often the best way to avoid a close quarters situation.

  • When officers hand over watch, the relieving officer must be briefed on course, speed, traffic, weather and dangers to navigation that could be expected.

  • Follow STCW code requirements on rest periods in order to minimise risk of fatigue.

  • Master and pilot should agree which language to be used between ship, pilot, tugs and shore.

  • Maritime Resource Management training course is recommended to foster positive attitudes favouring good personal communication, excellence in leadership skills and compliance with operating procedures.

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