A sea lane, sea road or shipping lane is a regularly used route for vessels on oceans and large lakes. In the Age of Sail they were not only determined by the distribution of land masses but also the prevailing winds, whose discovery was crucial for the success of long voyages. Sea lanes are very important for trade by sea.
@wikipedia===MSP Challenge===
With the MSP Challenge Game ship will always attempt to find the shortest path between their starting position, and their destination. The shipping lanes are used to guide shipping intensity via a preferred direction. Ship will only deviate from routes if there are no lanes available, or if alternative path is significantly faster.
Per shipping lane multiple types of ship can be selected. This can be used to create a varying selection of shipping lanes.
The direction and width can be set as well, although those are (currently) only used for visual reference.
Shipping lanes only direct shipping intensity between two points. They will not generate new intensity between previously unconnected ports.
Shipping routes cannot be placed on physically restricted areas, or designated no shipping zones.
A Traffic Separation Scheme or TSS is a traffic-management route-system ruled by the International Maritime Organization or IMO. The traffic-lanes (or clearways) indicate the general direction of the ships in that zone; ships navigating within a TSS all sail in the same direction or they cross the lane in an angle as close to 90 degrees as possible.
The MSP Challenge Game does not have a direct TSS layer. However, the function of a TSS can be replicating by placing two Single Direction Shipping Line and a No Shipping Zone.
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