The black and yellow signs are called advisory speed limit signs. They indicate a speed recommendation-- when it may be non-obvious to the driver that the safe speed is below the legal speed.

Question: With the law of $300 fines in construction zones, I have a question. I know the white and black speed limit sign is the legal speed limit.

So, L., keep an eye out for the signs – they should be arriving in six-to-eight weeks or even sooner, Widor said, with the speed limit likely staying at 65 mph. Related Articles ...

Question: With the law of $300 fines in construction zones, I have a question. I know the white and black speed limit sign is the legal speed limit. Are orange ...

The photos he produced showing the signs in place were taken by an officer who had not been consulted about the sign issue. The pictures released by the sheriff show the “road construction ahead ...

Between Hundertmark Road and Pioneer Trail, the speed limit signs are black, white and green all over. If you take a close look, it does seem a little off, but this is actually a pretty common sight.