🆕Grade separation

Where Transport Nodes have been split apart due to grade separation, the original node keeps the existing OSID and the additional nodes are indicated with the suffix --1 or --2, depending on the grade separation value. Also, the geometries of grade separated Transport Nodes are offset (5cm in both the X and Y axes) to prevent routing software failure due to point spatial objects being at the same position.

If a Transport Link has a different grade separation at the start and end node, the link is split. The OSID of the new Transport Node between the split links is indicated with a suffix of --S. One of the Transport Links keeps to original OSID and the other has the suffix of --S.

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