What it means
An additional panel never stands alone. This one tells you how far ahead the main sign above it begins to apply.
What to do
A small panel showing exactly how far ahead the restriction or hazard applies.
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.
