Ok, I think these are national highways managed by the regions but signed as national highways. That means, we should draft it for espn because we usually draft routes like they are signed. We shouldn't rely on the Formento document.
btw: N102-N122 are in.
Message edited.
Here's N-IV:
1 - The first stretch I found if starting from Madrid is this bypassed one in Dosbarrios, Castile-La Mancha. Starts at
A-4 exit 69 , and after a while,
this sign tells us this is N-IV. After crossing Dosbarrios, it continues as A-4 service road
to merge in exit 72 . A pair of signs before that:
https://goo.gl/maps/aaYicAzVryj (though wrongly colored haha)
2 - This other one
starts at exit 83, here's a
kilometer sign along with a milestone, then goes through La Guardia for ending into the A-4
here.
3 - Next one starts at
A-4 exit 144, we found a N-IV sign a
bit after
https://goo.gl/maps/j91RE4SP4nx, then enters into Villarta de San Juan, where crosses with CM-4126, and ends
in exit 149,
leaving another sign before.
4 - This one, which was kept because it passes through the pass of Despeñaperros (the traffic jams that were formed here before the building of the motorway are still remembered, and well, there were even traffic jams even in the motorway before updating it with bridges and tunnels hahaha) and is numbered as N-IVa. It starts at the merge
here (a little bit
further,
exit 243 connects the other way ), passes through Venta de Cárdenas and then under the motorway. After a while,
it leaves Castile-La Mancha to enter Andalusia . In this stretch you can see some kilometer signs saying A-4 as one of the motorway carriageways used to go through here (as it was
built over the old national road), but when new tunnels and bridges were built to avoid the curvy stretches, this stretch returned to the N-IV. Actually. you can even see in Google Maps the other carriageway no longer used because of the same reason to the right of the N-IVa. After some tunnels and loads of curves, it interchanges with A-4 in its exit 250 (both ways:
https://goo.gl/maps/2K9rNeoSfVC2,
https://goo.gl/maps/WP8po76UTYR2), passes under it several times and finally ends, giving access to Santa Elena, in the
A-4 exit 257.
5 - This stretch starts
in a roundabout with A-4 exit 292 and A-44 exit 0, here's a sign just before it. Then goes through a stretch wronlgy labeled in GMas N-323 to share itinerary with it after a roundabout by passing the city of Bailén,
then separating with it, to merge with the A-4 (
exit 299) just after
this kilometer sign.
6 - The next part found starts at
this roundabout, and is part of N-IV as
this milepost tells us later. Although listed in that milepost as N-IV, it's actually N-IVa, as direction signs show:
https://goo.gl/maps/UrwY5ydDu842https://goo.gl/maps/TUqVha6UDPM2After a bit, the road interchanges with the autonomical road A-306, gives access to El Carpio and ends in
exit 377 of the A-4. Here a
kilometer sign just before it.
7 - This one starts at
exit 383, connects with CO-3105, crosses Alcolea and enters the city of Córdoba interchanging with N-432 to end
in exit 401.
Here's a sign in a roundabout just before it.
8 - The next one starts
at the merge here into the A-4. Here's a
kilometer sign a bit before. It crosses Aldea Quintana (crossing with A-3052), El Quintanar, El Arrecife and La Carlota to end in
A-4 exit 434.
9 - This other stretch starts
at exit 450, and is N-IVa according to the sign. After entering Écija, ends
in exit 45510 - This section begins in a roundabout in the outskirts of Seville (here's
a sign when coming from it), gives access to Dos Hermanas, crosses with SE-3205 and interchanges with AP-4 and A-4, as the later ends and merges into the AP-4, to make N-IV the most popular non-tolled route. BTW, it's wrongly labeled as CA-31 too, though CA-31 is a 2 kilometer only route near Cádiz, so it's a GM mistake. Then it bypasses Los Palacios y Villafranca, gives access to Guadalema de los Quinteros, interchanges with the Andalusian road A-394, crosses with A-371, after it goes through El Cuervo
and becomes the A-4 when approaching Jerez (that's where the sherry wine comes haha)
11 - This one, signed as N-IVa, crosses the city of Jerez. Starting at [img=https://goo.gl/maps/5PpB2KLwnVF2]http://this roundabout[/img], crosses with A-2000 and A-480 atuonomicals, to finish
in exit 645 12 - This stretch, signed at the beginning as N-IV and after as N-IVa, starts at
this roundabout with CA-31, crosses with A-491 and El Puerto de Santa María to end
in this roundabout.
It's still signed as going through the river in the other way, though I haven't seen any sign after this roundabout. The rest of the stretch, though labeled as N-IVa in GM, is actually CA-32.
That's all!
Next one will be N-V!
