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Shipping Fairways / Shipping Fairways / v1.0.0

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Schema from shipping-fairways.parquet, gcp-portolan-published, v1.0.0.

Various shipping zones delineate activities and regulations for marine vessel traffic. Traffic lanes define specific traffic flow, while traffic separation zones assist opposing streams of marine traffic. Precautionary areas represent areas where ships must navigate with caution, and shipping safety fairways designate where artificial structures are prohibited. Recommended Routes are predetermined routes for shipping adopted for reasons of safety. Along certain zones of the East Coast of the United States, ships are required to reduce speeds to 10 knots or less over ground during seasonal periods within designated endangered species areas, such as the North Atlantic Right Whales. Particularly Sensitive Sea Areas need special protection because of their vulnerability to damage by international maritime activities. Areas to be avoided are within defined limits where navigation is particularly hazardous or it is exceptionally important to avoid casualties and should be avoided by all ships or certain classes of ships. Direct data download | Metadata

Columns
6 columns
Features
326
Geometry
Polygon
ColumnTypeNullableNullsUniqueDescriptionExamples / Values
geometrygeometryNo0
Range: Length:
Examples:
Values:
OBJECTIDintegerNo0
Range: 104305 to 104630Length:
Examples: 104427, 104371, 104447, 104550, 104451
Values:
THEMELAYERstringNo0
Range: Length: 40
Examples: Traffic Separation Schemes/Traffic Lanes, Traffic Separation Schemes/Traffic Lanes, Traffic Separation Schemes/Traffic Lanes, Traffic Separation Schemes, Speed Restrictions/Right Whales
Values: Area to be Avoided, Particularly Sensitive Sea Area, Precautionary Areas, Recommended Routes, Shipping Fairways Lanes and Zones, Speed Restrictions/Right Whales, Traffic Separation Schemes, Traffic Separation Schemes/Traffic Lanes
INFORMstringYes147
Range: Length: 253
Examples: Safety fairway, 33 CFR 166.300, Recommended for ships of 400 gross tonnage and upwards. IMO-Adopted (MSC IMO SN.1/Circ.336), Southern approach - separation zone, Hudson Canyon to Ambrose Traffic Lane Inbound, Safety Fairway 33 CFR 166.400
Values:
OBJNAMstringYes287
Range: Length: 57
Examples: Unalaska Area to be Avoided, Right Whale Seasonal Management Area, North Atlantic Right Whale Seasonal Management Area (SMA), North Atlantic Right Whale Seasonal Management Area (SMA), Right Whale Seasonal Management Area
Values:
idintegerNo0
Range: 104305 to 104630Length:
Examples: 104427, 104371, 104447, 104550, 104451
Values:
Quality checks: Failed
Invalid geometry count: 7
Columns hash: f5d5de8440ffb78a93cd0202759594aba1f9bb0b3982c4c8f29a2684db76ac6a