In this research, firstly, the analysis of domestic and foreign instances, the functions for maritime safety facilities, the maritime traffic survey, the statistical survey for maritime traffic data and the statistical survey for marine accidents have been done in order judge the economical efficiency of maritime traffic safety facilities from the sides of economical and effective analysis against the investment of public works. And the analysis of operation-effectiveness was carried out under applying in actual maritime traffic safety facilities after constructing a Cost and Benefit Analysis for the operational effect.
The method and process of evaluation used the quantitativeevaluation method which is possible and the case where quantitative evaluation method is difficult applied the qualitative evaluation method. In this case, it is evaluated on the basis on an objective information and data or fact, which is possible. The processes of evaluation were divided by 3 phases. The phase 1 is the pre-evaluation that is done before establishing a maritime traffic safety facility. The phase 2 is post-evaluation that is done after establishing a maritime traffic safety facility. The phase 3 is re-evaluation that it follows the alteration and improvement in change of the legal and technical environment. And an analysis for the operational effectiveness will be practically carried out.
The cost and benefit model for the operational effect was established by classifying the transportation, safety and other benefit. The loss evasion expense which it follows in marine accident decrease was changing at monetary value, and the safety benefit was produced from it. By calculating navigational time, the operation timely shortening ratio which it follows in decrease of navigational time and an operational curtailment expense produced as the transportation benefit.
With the technical advance, the existing maritime traffic safety facilities are changed in demand of the new equipment. Other benefits were produced from the different characteristics between the old and new. The method that each item became quantitative proposed.
The proposed cost benefit model was applied with the evaluation for Incheon tidal current signal station, Mokpo Aton monitoring and control center and Jindo coastal VTS system after producing the benefits and calculating the costs.
The all results of cost-benefit were bigger than 1 and the all net present value were bigger than 0. And the economic internal benefit rate came out a large scale compared to the social discount ratio. It is likely that it was evaluated that it has propriety economically.