Understanding When to Split a Road in OSM
✅ A section of road must have different attributions from the sections beside it to be split in OSM.
❌ Segments that have common attributes, that is, no different tags or relations should not be split.
Why would you need to split a road?
Different attributes such as speed limits and surface type can support correct routing and navigation in OSM and also NHVR Go. Reflecting the correct changes in road conditions are important for up-to-do and reliable information
📘 Instructions
Step 1: Verify the Road Needs Splitting
What valid reasons in OSM to split a road^:
Lane count
Turn lanes
Speed limits
Surface type
^The above list is non-exhaustive. More attributions on roads can be found here: Australian Tagging Guidelines/Roads - OpenStreetMap Wiki and other pages on the OpenStreetMap Wiki
Step 2: Identify the Split Location
This example uses changes in surface type as the justification for splitting a road.
Having accurate surface type can indicate to data consumers a change from a solid paved surface to a more unstable dirt surface.
Spliting a road at the point where road attributes change |
Ensure the road segment is selected. It will glow red |
Right-click on the node where you want to split the road section |
Left-click on the road you want to change tags. In the Tags panel in the Edit feature pane. Add or modify the tags. This example will change the surface from paved to unpaved |
Following the change of these tags, and no other splits or road tag modifications are required. You can save and publish the changeset |