Sorry for the delay ^^b
My idea of how to categorize the routes:
Tier 1: A1-A91 inkl. AP routes but without (on the contrary to Pepe's suggestion) urban motorways which are also maintained by Spanish government
Tier 4: Nx as-is
Tier 5:
- Regional motorways (https://es.wikipedia.org/wiki/Anexo:Autopistas_y_autov%C3%ADas_de_Espa%C3%B1a#Autopistas.2C_autov.C3.ADas_y_carreteras_de_doble_calzada_auton.C3.B3micas)
- Urban motorways (https://es.wikipedia.org/wiki/Anexo:Autopistas_y_autov%C3%ADas_de_Espa%C3%B1a#Autopistas.2C_autov.C3.ADas_y_multicarril_en_entorno_urbano)
- Red Regional + Red (Inter)Comarcal / Red Regional o Primaria / Red de Primer Nivel / Red Primaria Básica + Red Primaria Complementaria / ... depending on the region (https://es.wikipedia.org/wiki/Red_de_carreteras_de_Espa%C3%B1a)
Tier 2: Remaining freeways (or motorway-like roads with minimum partially 2 carriageways and median?) of all colors (orange, yellow, green,...)
I think that's even a better option than mine, I usually overcomplicate things, sorry hahahha
I'd only change two things:
I wouldn't do a specific category for regional motorways, as they are at the same time first class regional roads (the last category you said on Tier 5) and many times the same road is one part motorway and one other big part first class regular regional road (take Ma-19 for example, it begins as a motorway with 8 lane sections and at km 26 turns into a first class regional road (with standards similar to national roads) and runs like that until its end in km 60) so we would have the same road divided in sections on diferent categories.
I wouldn't do too the last tier 2 roads as different colors are only for some regional ones (some regions use different colors between state freeways and autonomic ones) so as regional motorways they should be taken as first class regional roads.
I'm just doing it. Just got the 3xx and 4xx routes left to do (though that's probably a majority of them).
One thing I've noticed is that there, like the Autovias Urbano, are urban routes that seem to be part of the national network, rather than managed by the autonomous communities. I don't want system proliferation so these ought to go into this system (at least for the time being).
I've looked at the Spanish Wikipedia listings for these Urban routes (on the list of Autopistas and Autovias), taken all routes with red cartouches on that list then checked GMSV to see whether they are signed as such. I have the following:
- A79 in Alicante
- AC-10, AC-11 (the bit signed red not blue) in La Coruna
- BA-20 in Badajoz
- CC-11 in Caceres
- LU-11 in Lugo
- OU-11 in Orense
- SA-11 and SA-20 in Salamanca
- SC-11 in Santiago Compostela
- SG-20 in Segovia
- VA-20 in Valladolid
Yeah, all urban roads listed there are managed by the Red de Carreteras del Estado except the ones in Balearic and Canary islands. One thing to note is that some of them aren't motorways or even part of them is motorway standard and the other one is regular road, so be cautious and look GSV before deciding.
If you need any info about out our so complex system, I'll be glad to help you.
Thank you very much, have a nice day!
