What does this Swiss black on yellow rectangular traffic sign with a symbol looking like a dart mean?
I've seen this traffic sign in Switzerland. What does the second panel from the top mean? The panel is a rectangle, maybe 1½ times wider than high, depicting on the left a symbol that looks like a dart drawn within a rhombus, and on the right the text ►1,8m◄. The latter may indicate a maximum width but there is a different panel for that, so I expect the meaning to be a bit different.
I could not find this sign on this list of traffic signs in Switzerland and Liechtenstein.
Something is only permitted with AWD when having permission from the municipality of Ennenda, but what?
A few km away I saw the panel again, with the same symbol on the left, but on the right a maximum mass (12 t) rather than a maximum width:
Best Answer
The pictogram on the road-sign is just the symbol within the swiss armed forces for a Truck driver. That's the reason why you probably won't find it unless you know what you are looking for.
The drivers themselves will get a badge like the one below. 
So this sign is an instruction for a military truck driver.
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