This is the set that cuts across signs and hardware: everything you can read off the verge of a road, as opposed to off a border or a phone number. It is the meta most duels are actually decided by, and the one worth drilling until the answer arrives before you have finished looking at the picture.
5 games, free and without an account, playable in the browser.

Which countries use the different chevron types?

Can you guess which countries use each of the three guardrail types?

Have you committed the pedestrian crossing sign stripe counts to memory?

Which German states build with the A profile, and which with the B?

Can you guess which countries use each of the different bollard types?
Every game here is also in the full catalogue, which is the same list without a cut taken out of it.