About Level crossing: markers, the Saint Andrew's cross, and the red flashing light: which statement is WRONG?

You must stop as soon as the crossing lights start flashing red and the alarm bells start ringing; the barriers only lower a few seconds later.
Both types of level crossing have flashing lights and alarm bells; the only difference is the presence or absence of barriers.
✓ Every level-crossing marker post stands at the same distance from the crossing, regardless of how many stripes it has.
One Saint Andrew's cross means one track, two crosses mean two OR MORE tracks at that same crossing — not two crossings.

Correct answer: Every level-crossing marker post stands at the same distance from the crossing, regardless of how many stripes it has.

Explanation

Each diagonal stripe represents 80 metres: three stripes at 240 m, two stripes at 160 m, one stripe at 80 m before the crossing

You must stop as soon as the crossing lights start flashing red and the alarm bells start ringing; the barriers only lower a few seconds later
Both types of level crossing have flashing lights and alarm bells; the only difference is the presence or absence of barriers. The red-flashing-light stop duty applies in exactly the same way at a J11 crossing
One Saint Andrew's cross means one track, two crosses mean two OR MORE tracks at that same crossing — not two crossings