What does a red "X" over a lane mean?

A red "X" over a lane is a clear signal indicating that the lane is currently closed to traffic in your direction. This marking is typically used in scenarios such as on highways with reversible lanes or in tunnel systems where certain lanes can be designated for use only at specific times. When a red "X" is displayed, drivers must not enter or use that lane to ensure safety and to adhere to traffic regulations.

In the context of the incorrect choices, a green signal or open lane markings would indicate that a lane is available for traffic. Similarly, the lane could not be both open for parking and restricted for lane use simultaneously, as this could create confusion regarding the lane's intended use. Lastly, a lane designated for pedestrians would usually be clearly marked with different symbols, rather than using a red "X," which is specifically meant to indicate a lane closure.