Which is the Spanish equivalent to "A roads"?

Question

I'm translating into Spanish an article named "The cream of Jersey" and I don't know how to translate "A roads": "Driving along in our tiny hire car, which turns out to be the perfect size given that Jersey's A roads are the equivalent of country lanes back home [...]"

Thanks!

I fixed the link. Welcome to SD! - Gocika, Mar 26, 2011

Answer 1

In Spain the equivelent to A roads are referred to as "carreteras nacionales" to distinguish them from autovias (dual carriageways) and autopistas (motorways, some tolled)

Answer 2

You could translate it as las calleteras "A".

Answer 3

A Roads, interesting, at first I thought this was grammatical error.