[Talk-GB] Map styles and map servers (not really the Rossendale Way any more)

[Andy Townsend]

On 24/01/2022 21:39, Mark Goodge wrote:
>
>
> Actually, a good starting point for a UK style would be the old Carto 
> style before it was internationalised to match the road colour 
> conventions adopted by Bing and Google.

Here's one I made earlier:

https://map.atownsend.org.uk/maps/map/map.html#zoom=15&lat=-24.99956&lon=135.02943

:)

That started off as OSM Carto in 2014.  I have made two major colour 
changes since then:

  * Changed trunk roads from green to "primary red with a darker red
    casing" so that you can see them when they go through trees, which
    was a major issue with 2014 OSM.
  * Changed bridleways from green to blue for the same reason.

In addition to that lots of extra stuff was added like "has this road 
got a sidewalk / verge, is it on an embankment, does it run through a 
long ford" etc.

You could changed trunk roads back to OS green, but you'd have to change 
woodland to a lighter green (like OS have) and not show other "green OSM 
things" (which OS don't).


>
>>>> * as an example, map.atownsend.org.uk costs me < £20 per month, so 
>>>> if you split the monthly running cost between a few people it's 
>>>> less than the price of a beer at a monthly OSM meetup.
>>>
>>> What hardware (or VM) spec is that running on?
>> A Hetzner CX41 (see https://www.hetzner.com/cloud ).  If you wanted 
>> to pay a bit less a CX31, would probably work for just GB or UK.
>
> I presume that memory is the key, here?

For either OSM Carto or my style for GB I suspect you'd struggle now 
with <8GB memory.  Scotland loads in 4, but that's much smaller.  The 
files associated with the database server for my style for GB and IE* 
are currently 61GB (that starts small and grows until you reload it), 
and there are 6GB of tiles in the cache.

I suspect that an OSM Carto database (either now or in 2014) would be a 
bit smaller than for my style because it renders fewer things, but not 
much so.

Best Regards,

Andy

* from https://download.geofabrik.de/europe/britain-and-ireland.html , 
1.6GB of pbf

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