Earlier quoted context omitted.
> Yes, you can academically wonder whether an orbiting space station is a vehicle and whether it's in the park, but the obvious intent of the sign couldn't be clearer. Cars/trucks/motorcycles aren't allowed, and obviously police and ambulances (and fire trucks) doing their jobs don't have to follow the sign. Now you're assuming the intent. The park could contain loose soil on the edge of a cliff, so any vehicle drivi…
>Now you're assuming the intent. That's true but without assuming intent you end up blindly following rules. Something struck me when first moved to UK from Turkey: Every rule in UK seemed to have an intent and that's why I think Turkey is full of rules which no one follows but in UK the rules are less numerous but followed. In Turkey, Turks like to think that the rules are not followed because the fines are too smal…
Do you actually know that the latter sign is more effective than “don’t touch”? If it actually is, there are other possible explanations. The fact that it’s personally addressed to “you” could make it more effective. The fact that it’s simply a more unique/unexpected way to convey the message may cause people to be less likely to reflexively dismiss the more common directive of “don’t touch”.