precede a speed limit sign, are similar to it, and bear
the notation "Reduced Speed," usually above the sign
Warning Signs. Warning signs are diamond
shaped signs (Figure 10) warning of permanent physical
road hazards that require reduction of normal road
speed and/or special action.
Regulatory Signs. Regulatory signs are red
signs (Figure 11) indicating a regulated action such as
"No Right Turn," "Yield," "Do Not Enter."
Informational Signs. Informational signs are
either blue for motorists services (Figure 12) or green
for direction or guidance, such as freeway direction
signs. Brown is used for public recreation information
and scenic guidance.
Construction Signs. Construction signs are
usually triangular orange painted with block lettering.