Knew the Spanky pankies would one day recognise the superior nation between us and submit to our superiority over the European guffin boffin. *laugh-grumbles in posh*
On a serious note, I've noticed Spanish road markings & signage tend to be quite similar to British ones, e.g. using Transport, their give way lines aren't too far removed from those used on the British mainland. Hopefully zig zags might encourage the Spanish to be more courteous at zebra crossings to the delight of the British & German tourist.
Do they have the same controlled zone meaning or are they simply decorative?
I found a Spanish government post about these 'líneas quebradas'.
It seems they are only optional warning markings and need to be significantly longer than the British counterparts. 14 zigs and zags compared to 2 minimum in UK etc.