Driver’s Education · Module 1 of 8
Traffic Signs & Colors
Generalized U.S. rules — always cross-check your state DMV handbook for local law.
U.S. law — MUTCD
Traffic sign colors and shapes follow the federal Manual on Uniform Traffic Control Devices (MUTCD), which states adopt. Red octagon = stop nationwide. Your state handbook still wins on local speed boards and unique signs.
Module one. Traffic signs and colors. In the United States, sign color and shape tell you the job of the sign before you even read the words. Red means stop or prohibited. Yellow warns. Orange marks construction. Green and blue guide you. White regulatory signs state the law. Brown points to recreation. Fluorescent yellow-green marks school and pedestrian zones. Always slow down and obey the sign — guessing gets people hurt.
Signs talk in color and shape before you finish reading. Learn the code — it buys you reaction time.
RedStop · yield · do not enter · wrong way
YellowGeneral warning · curves · merges
OrangeConstruction · work zones
GreenDirection · exits · distance
BlueServices · rest · hospital · info
WhiteRegulatory · speed · lane rules
BrownParks · recreation · historic
Fluorescent YGSchool · pedestrian · bike warn
Shapes that matter
- Octagon — Stop only.
- Triangle (point down) — Yield.
- Diamond — Warning.
- Pennant — No passing zone (on the left of your lane).
- Pentagon — School zone / school crossing.
- Round — Railroad advance warning.
- Rectangle — Regulatory or guide (read the color).
Signals
Steady red = stop. Steady yellow = clear the intersection if you can stop safely — don’t floor it. Green = go if the path is clear. Flashing red = treat like a stop sign. Flashing yellow = proceed with caution.
Work zones (orange) often mean reduced speed and fines that stack. Give crews space — they can’t dodge you.
Quick check
Pick the best answer. You need at least 3 of 4 to pass.