Separation device of the traffic

Separation device of the traffic whose initials are DST .

A DST is established in order to reduce the risks of Abordage in an area or the sea traffic is dense in the two directions, and the zones where important flows of Navire S cross (Détroit S, courses, etc). Indeed the ships trying to carry out their tour as soon as possible, try to reduce the distance to be traversed and, thus cross to shortest. Many collisions took place in zones of change of road with strong density of traffic. It is enough one period of bad visibility to multiply the possibilities of Abordage. Example: Andrea Doria (steamer).

The first DST was set up in the Pas-de-calais in 1967.

It generally includes/understands two lanes separated by a zone from separation of traffic, it can also contain zones of change of road (roundabout) directing the ships towards other minor roads. DST can be materialized by the Balisage (buoys or Phare S), but today taking account of the possibilities of positioning by satellites, DST which aim at moving away the traffic from the coasts are " virtuels" , and defined by the only positions of the tops of the regulatorys zone, and by the rules of navigation in these zones.

Navigation is frequently supervised there by a service Radar since the ground.

Extract of article 41 of the Convention of the United Nations on the right of the sea: the Coastal states of straits can, when the safety of the ships in the straits requires it, indicate lanes and prescribe separation devices of the traffic.

Once the device (DST) accepted internationally in the framework of the OMI (international maritime Organization), the charts of navigation and the nautical Instructions is updated, published and a date and hour are fixed for the coming into effect of the new regulation of the traffic.

Navigation inside and near a DST must conform to a precise rule of the international Règlement to prevent the boardings at sea: rule 10 (extracted) the present rule applies to the separation devices of traffic adopted by the Organization and could not exempt any ship of its obligations under the terms of any of the other rules. The ships which sail inside a separation device of traffic must: *suivre the suitable lane in the head office of the traffic for this way; *s' to draw aside as far as possible from the line or the zone of separation of traffic; *en general rule, to engage in a lane or of to leave to the one the ends, but when they engage there or leave there laterally, to carry out this operation under an angle as reduced as possible compared to the head office of the traffic. The ships must avoid as much as possible to cut the lanes but, if they are obliged there, they must do it while steering a course which is as much as possible perpendicular with the head office of the traffic.

Examples

The separation devices of the traffic are very numerous; one can quote in particular:
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