okay I have a dumb question about "no trucks" signs

Usually that means no trucks as a thru route.
Local deliveries are normally exempt. But not always.
I think that sign has as many different meanings as places it's posted.

 

I take that to mean no commercial vehicles, even an F250 with commercial plates.

Edit... I just realized it depicts an actual tractor trailer. In New York, I've only seen that sign with straight trucks.

 

If I was driving bobtail and encountered that sign I would obey it as though attached to a trailer. Too much ambiguity and what LEO says goes. And if he thinks otherwise it is going in the ticket book and you are going to court. But that's just what I would do. Others may have different opinions.

Edited to add... A truck without a trailer is still a truck.

 

That sign is very specific.
It means no black single axle daycab cabovers with a red stripe across them.

All others are fine.

 

Seems perfectly reasonable to me....kinda like the signs you see quiet often at the top of a hill......warning all of us about Black Trux on Triangles.....although I never understood why.....but I do appreciate the heads up

 

They typically list either an empty weight or GVW along with the sign. It might say, "No trucks over 7,000 lbs. empty weight" or whatever... this, of course, applies to commercial vehicles using the route as a through route.. local deliveries are exempt in most cases, as are RVs.
I remember seeing plenty which list a max GVW of 10,000 lbs., meaning a pickup like an F250/Silverado 2500/Ram 2500 would be too heavy to legally be on that road, although it naturally doesn't apply to the same vehicle when it doesn't have commercial plates.
In the instances where they list a max GVW, keep in mind they're talking about the actual weight rating of the vehicle, not the actual weight at that time. So your bobtail might weigh 17,000 empty, but it'll have a GVW of 52,000 - 54,000.

 

I believe it would be situational.

Depends on where the sign is.