ABSTRACT
In the Oresund Link project a ship collision frequency model was used to calculate the frequencies of ship collisions and groundings. This model is based on information on ship traffic, tunnel and bridge geometry, navigational aspects, and statistical information on error rates. As a part of the analyses the frequencies of ship collisions with the bridges and of ship groundings on the tunnel and on the artificial island have been calculated. The chapter describes the main parts of the studies performed in relation to the verification of the ship collision frequency model and presents the results. Two main navigational channels exist in Oresund: Drogden Channel; and Flinten Channel. The computer programme SHIPCOF, developed by RAMBOLL, describes the behaviour of the grounding or collision candidates and estimate the yearly frequency of candidates. SHIPCOF applies four casualty scenarios: human failure; critical meeting situations; drifting ship; and steering failure.
