San Francisco, Washington DC and Los Angeles just got 51,385 turn lanes added to the map over the last 3 months. This was part of the push by the Mapbox data team to enrich OSM for better navigation and guidance.

Turn lanes added in LA

All the mapping tasks were coordinated and documented on GitHub. We’re simultaneously working to create a navigation mapping guide to consolidate a lot of documentation on the wiki with added context for the areas we work on. This should make it easy for new mappers improve OSM in their areas and also help potential users of the map data understand the tagging model. The comments and suggestions from the community helped us a lot in improving the guide and to speed up the mapping process.

Split up of turn lanes added

Please share your feedback on our changesets or at the Mapbox/mapping repository.

Happy Mapping!