I’m sorry but I don’t agree with most of the preceding posts.
If I was approaching an unfamiliar crossing I would be wary. I would not use buttons on a pole with no instructions. Then there is a stop sign. The instruction sign is at the stop sign for a reason, you stop and read. The red light is the last sign before actually crossing.
The number of signs would be more likely to make me stop to read them, especially a red light. OK, it is fairly small, but then so are all the signs, except the stop sign.
A contractor probably does not consider the trailer to be large or slow, but the trailer stand seems to be pretty close to the ground in picture 5, especially as the back of the tractor is in the air due to the front being low. Yes, the hydraulic lifters could be fully down in the picture, as a consequence of the incident.
These are just my thoughts.