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A vessel traffic service (VTS) is a marine traffic monitoring system established by harbor or port authorities, similar to air traffic control for aircraft. Typical VTS systems use radar, closed-circuit television (CCTV), VHF radiotelephony and automatic identification system to keep track of vessel movements and provide navigational safety in a limited geographical area. VTS areas often consist of defined areas of waterway including fairways, routes, anchorages and areas of special interest. All of these factors are currently monitored by a human VTS operator. The provision of active background rule based monitoring within VTS equipment will be of significant benefit to VTS, this will provide an increased level of automated surveillance of maritime traffic and support to VTS operators. Such surveillance may consist of automatic monitoring against predefined parameters of track and speed. Such monitoring may even be increased to include ‘what if’ scenarios such as UKC monitoring. If sufficient live tidal data is combined with accurate electronic charting data, it would be feasible for the vessel’s draft to be automatically monitored against the planned passage, and advance warning given of future constraints enabling early corrective action to be taken.
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