Bigger town's names occluded by clearly smaller town's names

[yopaseopor]

When I see Vilanova i la Geltrú (south of Barcelona)
http://www.openstreetmap.org/#map=12/41.22392/1.72511
, a town with 65000 population, and all these tags

addr:country_code ES
addr:postcode 08800
admin_level 8
capital 8
ele 25
is_in:country Spain
is_in:country_code ES
is_in:municipality Vilanova i la Geltrú
is_in:province_code 08
name Vilanova i la Geltrú
name:ca Vilanova i la Geltrú
name:es Villanueva y Geltrú
place town
population 66532
population:date 2009
ref:ine 08307000100
source Instituto Geográfico Nacional
source:date 2011-06
source:ele MDT5
source:file http://centrodedescargas.cnig.es/CentroDescargas/equipamiento/BD_Municipios-Entidades.zip
source:name Nomenclátor Geográfico de Municipios y Entidades de Población
wikipedia ca:Vilanova i la Geltrú

It gets hidden by other smaller towns, with less priority like Sant Pere de Ribes

name Sant Pere de Ribes
name:ca Sant Pere de Ribes
name:es San Pedro de Ribas
place town
population 11904

and same priority but less population as Vilafranca del Penedès

admin_level 8
capital 8
designation town
ele 229
is_in:country Spain
is_in:country_code ES
is_in:municipality Vilafranca del Penedès
is_in:province_code 08
name Vilafranca del Penedès
place town
population 35864
ref:ine 08305000500
source Institut Cartogràfic de Catalunya, IDESCAT
source:date 2011-06
source:ele MDT5
source:file http://www.idescat.cat/cat/idescat/publicacions/cataleg/pdfdocs/nomencat2010.pdf
source:name Nomenclátor Geográfico de Municipios y Entidades de Población
website http://www.vilafranca.cat/
wikipedia ca:Vilafranca del Penedès

When I ask that to the catalan list they say me it happens in other towns like Mataró pop. 116698 vs. Argentona pop. 11544.
All these happens at lower levels than 11.These towns (Vilanova i la Geltrú and Mataró) should start to appear from level 9 http://www.openstreetmap.org/#map=9/41.7734/1.7413 and the smaller towns would start to appear from level 11 http://www.openstreetmap.org/#map=11/41.3552/1.9398 .

But also I notify other thing.As OSM standards tags a city starting from 100000 population http://wiki.openstreetmap.org/wiki/Tag:place%3Dcity (spanish OSM standards also http://wiki.openstreetmap.org/wiki/ES:Key:place ) , in Spain there are so many cities that also be with same tag (town) and same name's size but not the same population (from 10000 to 100000 there are more than 400,some near to others so it is important to make a difference).Is there anyway render would count population to make the name bigger than other towns with less population?

[matthijsmelissen]

Birmingham should also not be hidden by Coventry on z7.

[HolgerJeromin]

Same with Philadelphia (area) blocked by Camden (http://www.openstreetmap.org/node/158518631):
http://www.openstreetmap.org/relation/188022#map=11/39.9850/-75.1156
The name is surprisingly far south at zoom 12
There is no population tagged here, but comparing area should solve it.

[matkoniecz]

Frankfurt is missing in z7 and z8, as reported in #1811

[yopaseopor]

Still happens http://c.tile.openstreetmap.org/9/258/191.png

[matkoniecz]

Note that tile.openstreetmap.org servers are using old version of this style, without code introduced by #1461.

openstreetmap/chef#36 proposes updating to v2.35.0 that is also not containing code that fixes this problem.

This issue will no longer appear on OSM website once v2.36.0 (not released at this point) will be used.

To check how it works with latest version of the style it is necessary to render tiles on your own.

[matkoniecz]

This triggers some interesting tagging for renderer - in China mappers started removing population tags and using china_population on bigger settlements that are considered to be rendered too prominently.