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Ships:

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Set the YAPF (Yet Another Path Finder) type in the "Configure Pathes/Vehicles/YAPF for ships":

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 - 0 - No YAPF (NPF or old PF)

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 - 1 - YAPF type 1 (Node = Tile/Trackdir, 90 deg. turns allowed)

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 - 2 - YAPF type 2 (Node = Tile/ExitDir , 90 deg. turns allowed)

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 - 3 - YAPF type 3 (Node = Tile/Trackdir, no 90 deg.)

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 - 4 - YAPF type 4 (Node = Tile/ExitDir , no 90 deg.)

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Set the "npf_max_search_nodes" value in your openttd.cfg to tune the pathfinder behavior.

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This value tells, how many nodes (Tile/Trackdir or Tile/ExitDir) combinations the pathfinder

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should visit before it ends. The lower number would mean quicker, but less accurate results.

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The "npf_max_search_nodes" value is shared between NPF and YAPF and has the same meaning.

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The pathfinder without such limit would be unusable on large maps, where number of visited

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nodes can exceed 10 milions. NPF on my machine (dual code AMD 4400+) with 1 milion of nodes

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visited took 2 minutes to finish, but with this limit set to 10000 it takes 20 miliseconds.

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The new YAPF had similar results (18 seconds vs. 4 miliseconds).

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Road Vehicles:

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Set the YAPF (Yet Another Path Finder) type in the "Configure Pathes/Vehicles/YAPF for road vehs":

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 - 0 - No YAPF (NPF or old PF)

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 - 1 - YAPF type 1 (Node = Tile/Trackdir, 90 deg. turns allowed)

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 - 2 - YAPF type 2 (Node = Tile/ExitDir , 90 deg. turns allowed)

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Trains:

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Same types as for ships:

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 - 0 - No YAPF (NPF or old PF)

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 - 1 - YAPF type 1 (Node = Tile/Trackdir, 90 deg. turns allowed)

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 - 2 - YAPF type 2 (Node = Tile/ExitDir , 90 deg. turns allowed)

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 - 3 - YAPF type 3 (Node = Tile/Trackdir, no 90 deg.)

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 - 4 - YAPF type 4 (Node = Tile/ExitDir , no 90 deg.)