US Road Signs & Meanings — Complete DMV Test Guide

US Road Signs for the DMV Test

Road signs are one of the most frequently tested topics across all state DMV written tests. Signs are grouped into three main categories:

Regulatory Signs (Usually White or Red)

Regulatory signs tell drivers what they must or must not do. They have the force of law:

• STOP (red octagon) — come to a complete stop before the stop line
• YIELD (red/white inverted triangle) — slow down, be prepared to stop for traffic
• Speed Limit signs (white rectangle) — maximum legal speed under ideal conditions
• No U-Turn, No Left Turn, Do Not Enter, Wrong Way — prohibitory signs
• One Way (black on white) — travel in one direction only

Warning Signs (Yellow Diamond)

Diamond-shaped yellow signs warn of potentially hazardous conditions ahead:

• Curve ahead, slippery road, lane ends
• Pedestrian crossing, school crossing, bicycle crossing
• Railroad crossing (round yellow sign), divided highway ahead
• Deer crossing, cattle crossing (rural areas)

Guide and Information Signs (Green, Blue, Brown)

• Green — highway mileage and route signs, exit numbers
• Blue — services (food, gas, lodging, hospital)
• Brown — recreational areas, national parks, points of interest
• Orange — construction and maintenance work zones

Signs Frequently Mixed Up on the DMV Test

• Yellow pennant (No Passing Zone) vs yellow diamond (general warning)
• Red circle with slash (no turn) direction varies — check the arrow inside
• School zone (pentagon shape, yellow-green background — newer standard) vs older yellow school signs