A _________ indicates the outer edge of a roadway, and it may be crossed only by traffic moving to or from the shoulder.

A _________ indicates the outer edge of a roadway, and it may be crossed only by traffic moving to or from the shoulder.

• A. Dashed white line
• B. Solid yellow line
• C. Solid white line
• D. Dashed yellow line

Answer: (C)

A solid white line along the outer edge of the roadway marks the boundary of the driving surface. It shows where the usable pavement ends and the shoulder begins, and you should stay on the roadway unless you need to move onto or from the shoulder. Crossing this line is only appropriate when you’re entering or leaving the road onto the shoulder, such as in an emergency. This line helps keep traffic where it’s intended to be and keeps the shoulder available for stopping or other purposes. Dashed white lines indicate lane separation and allow passing where safe, a solid yellow line (on your side) generally means no passing, and a dashed yellow line means you may pass when safe. These other markings don’t define the roadway edge like the solid white edge line does.

A solid white line along the outer edge of the roadway marks the boundary of the driving surface. It shows where the usable pavement ends and the shoulder begins, and you should stay on the roadway unless you need to move onto or from the shoulder. Crossing this line is only appropriate when you’re entering or leaving the road onto the shoulder, such as in an emergency. This line helps keep traffic where it’s intended to be and keeps the shoulder available for stopping or other purposes.

Dashed white lines indicate lane separation and allow passing where safe, a solid yellow line (on your side) generally means no passing, and a dashed yellow line means you may pass when safe. These other markings don’t define the roadway edge like the solid white edge line does.