Good example track. In the run up to a Grand Prix (lets call it two weeks, plus [perhaps] long flights over, probably with team personnel) do you think they don't talk about this? It probably takes 10 seconds to sort out the corner names/numbers, and relate them to the circuit once their out (and bear in mind all of them will have driven the track in a road car at the very least).
The driver HAS to do it over the radio, as the feedback is continuous. But, of course, more feedback occurs back in the pits. When they're in the car I doubt they look down and study the map whilst doing so. Remember, we're talking some of the best drivers in the world, and none of them are that stupid. The sort of people that mentally visualise EVERY aspect of the track in their heads. My racing car might not be quite as fast or expensive, but if I can memorise the corner names/numbers in a fortnight before a race, and know them INSTANTLY I get to them then I think an F1 driver can manage it.
Will they use a map at some point - probably, but more than likely a much bigger one on a desk in an office, where bumps, cambers and all sort of other details not picked up beforehand are discussed, and a written log of the cars feeling builds up.
If you can find me ONE picture or video of an F1 driver looking at the map whilst talking to his engineers (or at all actually) then I am willing to concede. But you won't, because they don't. There is no known reason for any racing car to have a map with corner numbers. Escape roads, gaps in fences etc would be useful, but the turn numbers simply aren't.
Memorise the following numbers: 1, 2, 3, 4, 5, 6, 7, 8. I'm going to test you on them later. See if YOU can get them right (and in the right order), because if you can an F1 driver can. Even Montoya could, and he had a broken frikken head.