[OSM-talk] Tagging urban streets

[Simon Hewison]

Francisco R. Santos wrote:
> I think I didn't fully explain.
> 
> I know there is a general scheme for *roads* outside towns, but what I 
> want to ask is if there is a general scheme *inside* towns. That is, 
> what is the general rule for mapping, for example, downtown London streets?

In London, the main roads are marked on the signs exactly the same as 
outside of London, which Richard Fairhurst summarized tagging scheme. Route 
numbers and designations continue into Central London, so it's not too 
difficult to follow the A1 from the Aldersgate Street Roundabout in the City 
of London right up to Waterloo Place in Edinburgh. The route occasionally 
changes from trunk to primary based on purely political reasons as to 
whether local, regional or national government maintain it, and occasionally 
it becomes a motorway and takes on proper motorway status as the A1(M).

Having a different designation within towns than outside is a concept alien 
to the United Kingdom, but is clearly an issue within Paris, and in Spain.

-- 
Simon Hewison