What it means
An additional panel never stands alone. This one narrows down the main sign above it, for example to certain times or vehicles.
What to do
A small panel adding detail to the main sign above it, such as the time of day or the type of vehicle affected.
How to read additional panels
Additional panels are small rectangles fixed under a main sign. They add detail such as a distance, a direction or a time, and they never apply on their own.
More additional panels
On the way to your test? Read how the NTSA test works and how the Model Town Board is used.
