White lane markings — Tennessee Permit Test

Multiple lanes of traffic that flow in the same direction are separated by white lane markings.

White lines mean the cars beside you go your way. That tells you the road is one-way or divided.

White Lane Markings - Multiple lanes of traffic that flow in the same direction are separated by white lane markings.

Broken white lines between lanes mean you may cross them to pass or change lanes if it is safe.

Even where crossing is allowed, a car may be in your blind spot. Check before you move over.

Broken white lines between lanes of traffic mean you may cross the lines to pass or change lanes if it is safe to do so.

One solid white line between lanes means you should stay in your lane and not cross it to pass, unless an emergency requires a lane change.

A solid white line is painted where a lane change is risky, like near an exit. Crossing there can cut off a driver.

One solid white line between lanes of traffic means that you should stay in your lane and should not cross the line to pass (unless an emergency situation requires you to change lanes).

You should not cross a double solid white line.

A double white line is the strongest lane barrier. Crossing it often puts you in a lane that splits off or carries fast traffic.

Also, you should not cross a double solid white line.

What do white lane markings between lanes tell you?

Traffic moves the same way. White lines mean the cars beside you go your way. That tells you the road is one-way or divided. Tennessee Comprehensive Driver License Manual, p.43: “White Lane Markings - Multiple lanes of traffic that flow in the same direction are separated by white lane markings.”