VTS special terms

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• Fairway Navigable part of a waterway
• ITZ Inshore Traffic Zone (of a TSS)
• Manoeuvring speed A vessel’s reduced speed in circumstances where it may be required to use the engines at short notice
• Fairway speed Mandatory speed in a fairway
• Receiving point A mark or place at which a vessel comes under obligatory entry, transit, or escort procedure
• Separation zone / line A zone or line that separates traffic lanes where vessels are going in opposite or nearly opposite directions, or separates a traffic lane from nearby sea areas, or separates lanes for different types of vessels going in the same direction.
• Traffic lane An area within defined limits in which one-way traffic is established
• Reference line A line displayed on the radar screens in VTS Centres and/or electronic sea-charts separating the fairway for inbound and outbound vessels so that they can safely pass each other
• Traffic clearance VTS authorization for a vessel to proceed under conditions specified
• TSS Traffic Separation Scheme: a routeing measure aimed at the separation of opposing streams of traffic by appropriate means and by the establishment of traffic lanes
• Reporting point A mark or position at which a vessel is required to report to the local VTS Station to establish its position
• VTS area Area controlled by a VTS Centre or VTS Station

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