The Coast Guard, which failed to watch the errant course of the Exxon Valdez, now has a sophisticated satellite tracking system for maritimetraffic past the straits.
It is an advanced, effective technical means for maritimetraffic management and accident analysis to establish a maritime accident information system based on electronic chart technology.
采用电子海图技术建立水上交通事故信息系统，已经成为海上交通管理、事故分析的一个先进有效的技术手段。
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Maritime Navigation Aid System is the important part of MaritimeTraffic Safety Guarantee System.