When driving along a road with overhead lane signals, which lane should you use?

Using a lane under a green or white arrow is the correct choice because these signals indicate that the lane is open for use. Green arrows mean that it is safe to proceed in that lane, while white arrows generally signify that the lane is also available for drivers to use, though there may be additional context that applies.

In contrast, a red X signal means that the lane is closed to traffic, and using it can lead to dangerous situations, including potential collisions with other vehicles. A yellow signal typically warns drivers to prepare to stop or indicates that the lane is about to be closed, so it is not advisable to use that lane when it's marked with a yellow signal. Choosing the lane indicated by a green or white arrow ensures compliance with traffic management systems and promotes safety for all road users.