Regulatory Signs
Lane Use Control Ahead sign
A lane diagram for the intersection ahead: the left lane may go straight or turn right, while the right lane is marked ONLY and must turn right.
- Shape
- Square
- Color
- White with black
- Type
- Regulatory
What to do
- Pick the correct lane well before you reach the corner.
How to read it
Square. Square signs are used for rules and for guidance. Read the color to tell which.
White with black. Black on white is a regulatory sign: a traffic law you must follow.
Regulatory sign. Regulatory signs state traffic laws. Ignoring one is a violation.
Signs follow the national standard (the MUTCD) in every state. Your state handbook is the final word for your test.
Related signs
Signs that look similar or come up together on the test.
Road signs quiz and flashcards
Drill every sign on your phone, along with the rest of your state’s test.
Not a government website. USA DMV (usadmv.app) is an independent study resource. It is not affiliated with, endorsed by or operated by any state DMV, the Texas Department of Public Safety or any other government agency. Practice questions are written to reflect official driver handbooks but are not the official test questions. Always confirm current requirements with your state’s licensing agency.