TETP is just a nefarious scheme to dictate glorious typography to member states. Seriously that thing is good: Ridiculously legible and specifically so in "big font at long distances" situations, meanwhile both friendly and authoritative -- exactly the kind of thing you want when asking for the way. No "yeah let me think where was that intersection" or "can't you find your own way" but "Of course! Go straight ahead, first to the left, then the second right".

Now if the EU would get around to telling member states that they should learn from each other in overall traffic and urban design, and follow the best practices that they can find anywhere. Which is diplomatic language for "Do as the Dutch do".