Core: Special lights: tram/bus, level crossing, bridge and lane

The tram/bus light applies to tram and scheduled-bus drivers following the indicated direction, but ALSO to drivers of other vehicles lawfully using that same bus lane or bus strip — the name does not cover the full scope. At a level crossing the intuition flips: white flashing means 'no train is approaching', so you may proceed; only red flashing means stop. At a bridge it is simpler: red or red flashing always means stop, without the level crossing's white-flashing-means-go nuance. In lane signalling (also called a matrix sign) the white arrow — not a yellow one — is the pre-warning for a red cross; the red cross itself bans the lane completely, even in a jam. A bicycle light within this whole system stays separate: it only applies to cyclists, moped riders on a cycle/moped path and mobility scooters.