Iowa road signs for the knowledge test

Study sign families

• Regulatory signs: requirements and prohibitions.
• Warning signs: hazards and changes ahead.
• Guide signs: routes, destinations and services.
• School, railroad and work-zone signs: special conflict areas.

Signals and pavement markings matter too

The knowledge test is not only about sign names. Review traffic lights, lane arrows, center and edge lines, passing restrictions and intersection markings from the manual's rules-of-the-road chapter.

Connect each sign to an action

For every sign, ask what the driver must do next: stop, yield, reduce speed, change lanes, prepare for a hazard, stay in a lane or follow a route. That makes sign knowledge useful in full test questions.

• Iowa Driver's Manual
• Iowa test format