Exit/Ramp Advisory Speed Sign
MUTCD W13-2
The safe speed for the exit ramp ahead is the speed shown.
What it looks like
A yellow diamond-shaped warning sign showing a black ramp curve symbol with the advisory speed for the exit.
When you'll see it
At freeway and highway exit ramps where the ramp curves sharply and a lower speed is needed to take it safely.
What to do
Slow to the shown advisory speed before entering the ramp; it is the safe speed for the curve ahead.
Related signs
Source: Manual on Uniform Traffic Control Devices (MUTCD), 11th Edition — FHWA.