Two sets of solid, double, yellow lines spaced two or more feet apart indicate:

The correct answer highlights that when you see two sets of solid, double yellow lines spaced two or more feet apart, this configuration indicates a barrier. This design is employed to signal to drivers that the area between the lines is not intended for traffic passage. It serves as a visual marker to delineate where certain types of movement, such as crossing over into oncoming traffic or making turns, are restricted or prohibited due to safety concerns.

This barrier may also be used to separate different types of roadways, providing enhanced safety measures for vehicles and pedestrians alike. In contrast, the other provided choices do not accurately represent the function of this road marking. For example, a designated bike lane is usually marked with different symbols and colors that distinctly indicate space for bicycles. Similarly, no-parking zones are often marked by signage or different line styles, rather than double lines, and a pedestrian path wouldn’t be identified with double yellow lines but with different markings or signage meant to indicate pedestrian priority. Thus, understanding the significance of these road markings is crucial for safe driving and compliance with traffic regulations.