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Sector Lights

IALA Maritime Buoyage System
Typography

Sector Lights

Definition of Sector Lights

A sector light is a fixed aid to navigation that displays a light of different colours and/or rhythms over designated arcs. The colour of the light provides directional information to the mariner.

    

SECTOR LIGHTS

 

SECTOR LIGHTS DESCR

 

 

Description of Sector Lights

A sector light may be used:

To provide directional information in a fairway;

To indicate a turning point, a junction with other channels, a hazard or other items of navigational importance;

To provide information on hazard areas that should be avoided;

In some cases a single directional light may be used.

Source: IALA

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