Runway centerline markings consist of what?

Runway centerline markings are designed to provide guidance to pilots during takeoff and landing, and they are represented by uniformly spaced stripes and gaps. This pattern helps visually indicate the center of the runway and assists in alignment during various flight operations. The alternating stripes and gaps create a clear and standardized signal that enhances safety by making it easier for pilots to maintain the correct heading on the runway.

The other options, such as uniformly spaced dots or solid lines only, do not accurately depict the standard runway centerline markings established by aviation regulations. Concentric circles are not relevant in this context as they serve different purposes, such as marking thresholds or the ends of runways but do not relate to the centerline itself. Understanding the correct structure of these markings is crucial for ensuring safe aircraft operations around runways.