We’re trying to build the UK OSM community with Quarterly Projects – our first project is FIX THAT ROAD NAME.

If you’re new to all this then the first port of call should be the OS Locator wiki page.

It’s a good idea to have the OS Locator imagery layer ON during editing so you can see where there are errors as you edit. Advice on how to do this is on the OSM and OSL differences tileset page


1.Concentrate on areas you know well and can reach easily in case a survey of the road name is required

2.If an OSM road has a name that is different from the OS Locator name then it definitely should not be changed UNLESS you have definite local knowledge OR you have surveyed it.

3.If your name for the OSM road is different from OS Locator then once you’ve corrected or entered the name you need add the tag not:name= nnnnnnn where nnnnnn is EXACTLY the OS Locator name.

4.If an OSM road has no name but OS Locator has then you MAY add the OS Locator name AS LONG AS you add the tag source:name=OS_OpenData_Locator. This is because OS Locator often has an incorrect or mis-spelled name and this enables other editors at a later date to scan an area using this tag to further improve the data should this be the case. There is a division of opinion amongst veteran mappers about this: many hold that ONLY surveys are legitimate, but as long as you tag with source:name=OS_OpenData_Locator then this is acceptable as the vast majority of OS Locator names are correct.

There are some special cases which will be dealt with in a separate blog.

If you need help then either subscribe to the talk-gb mailing list. Instructions here

or email or phone your query to us using one of our contacts

And don’t forget – as you correct and add road names you’ll always find other things to improve!


3 Responses

  1. Rob Norris

    Regarding point 4, it’s normally better to be more specific about what information has been derived from which source.

    Hence I would use source:name = OS_OpenData_Locator

    • Brian Prangle

      You’re quite right – I’ll correct the blog entry – thanks for reading and commenting

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.