Guam Traffic Laws, Signs, and Signals
Guam Traffic Laws, Signs, and Signals
This domain tests the rules of the road, sign recognition, signals, and lane markings used on Guam. Guam drives on the right, uses US-style traffic signs, and applies a basic speed law: never faster than is safe for conditions, even below the posted limit.
Signs by shape and color
- Red octagon: STOP. Triangle: YIELD. Yellow diamond: warning. Orange: work zone. White rectangle: regulatory. Green: guide. Circular: railroad.
- A flashing red light means stop, then proceed when safe. A flashing yellow means slow and proceed with caution.
- Solid yellow lines separate opposite directions; dashed white lines separate same-direction lanes. Double solid yellow means no passing.
Signals and intersections
Use turn signals before every turn and lane change, and cancel them. At a stop sign, stop fully behind the line or crosswalk. Right turn on red is generally allowed after a full stop unless a sign prohibits it. Do not enter an intersection unless you can clear it.
Guam specifics
Seat belts are required, and child-restraint rules apply. Handheld phone use while driving is restricted; use hands-free equipment. School zones have reduced posted limits, and work zones require extra care. Motorcycles must be registered and riders licensed; obey any permit restrictions printed on your permit.
Worked example
You approach a steady red light and want to turn right. A sign says "NO TURN ON RED." Reasoning: the sign overrides the general right-turn-on-red rule. You must stop and wait for a green light, even if the road looks clear. If no sign existed, you would still make a full stop, yield to pedestrians, and turn only when safe.
Traps
- Rolling through a stop sign instead of stopping fully.
- Treating a flashing yellow as a green light.
- Ignoring a "No Turn on Red" sign.
- Passing on double yellow lines.
- Forgetting to cancel a turn signal.