[OSM-talk] zones for motorway/in town/outof town?

[Greg Troxel]

"Ed Loach" <ed at loach.me.uk> writes:

>> So as long as exception roads have speed tags, what's the
>> problem?
>
> None as far as I can see, but by the time you've checked every road
> in the zone to see whether it is an exception, and presumably tagged
> it as checked so other mappers know it has been checked so they
> don't also need to go and check, you may as well tag it with the
> maxspeed. 

I see your point.  I was thinking that by drawing a polygon around a
city with 30, then the roads that you have no clue about within that
will be treated by routing as 30, even though we don't know.  The notion
that by drawing a region one is obligated to check signs on all roads
doesn't make sense to me, because the polygon/default improves the data
quality from the totally untagged state.

That said, I don't really care what happens, because around where I am
the notion that roads without speed tags are 30 mph is a very good
approximation to reality.

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