If we see a supplementary panel with a figure in meters below a warning sign, what does it mean?

Question

DentroTest · Accepted Answer

The supplementary panel S-800 indicates the distance between the location of the vertical sign and the exact point where the danger or the corresponding requirement begins. As this is a warning sign, it specifies how many meters remain to be traveled before reaching the situation warned of. By contrast, if the figure were accompanied by vertical arrows at the sides (panel S-810), it would indicate the total length or extent of the dangerous section.

If we see a supplementary panel with a figure in meters below a warning sign, what does it mean?

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