Waterway Transport Of Dangerous Goods Emergency Decision System Based On Cbr Research

Waterway dangerous goods transportation is promoting economic development and has also brought about great environment pollution and potential safety hazard. Therefore, making effective emergency rescue plan and taking timely and effective rescue measures for ensuring safety of waterway dangerous goods transportation have become an important research area.This dissertation will focus on the emergency decision problem of waterway dangerous goods transportation accident. The major study contents are as follows:Firstly, based on deep analysis in characteristics of waterway dangerous goods transportation accident and CBR, combined with the need for the expression of waterway dangerous goods transportation accident, a frame structure for the expression of waterway dangerous goods transportation accident is put forward. Then general frame for the case of waterway dangerous goods transportation accident and characteristic of dangerous goods,the status of ship and environment situation frameworks are constructed.Subsequently, according to different attributes within the case of waterway dangerous goods transportation accident, attribute similarities are calculated by the algorithms based on distance and fuzzy membership, attribute weights are calculated by analytic hierarchy process and rough set theory. On the basis of the result of similarity computation for each subframe, the global similarity is evaluated by two-stage retrieval strategy and nearest-neighbor algorithm.Eventually, the overall design of the waterway dangerous goods transportation emergency decision system based on CBR is proposed. System function and work flow are analyzed. Then the waterway dangerous goods transportation emergency decision system based on CBR is developed by using Visual Basic 6.0 and SQL Server 2000 and the example verification is carried out. The revise of rescue plan is also discussed.The studying result of this dissertation will provide an important basis and the guideline for the emergency decision of waterway dangerous goods transportation accident and making rescue plan.