Abstract
Newly developed software was applied to study the effects of damages due to collision and
grounding. The annual risk of collision and grounding was computed for an example RoRo
passenger ferry. Collision frequency was evaluated for a specified route taking into account
traffic data. Grounding frequency was calculated for an artificial obstacle located close to the
traffic route. The consequences of collision and grounding scenarios were estimated by
introducing damage criteria that link the calculated distribution of damage size and damage
location to monetary units. Loss of human life and reputation was not considered. It was
shown that the main part of the calculated annual risk is caused by cap