How many threshold stripes does a runway 30 m wide have?

The correct answer reflects the standard markings for a runway that is 30 meters wide, which typically has eight threshold stripes. Specifically, a runway's threshold markings are used to indicate the beginning of the runway available for landing and are essential for pilots during approach and landing phases.

For a runway width of 30 meters, the eight threshold stripes are placed parallel to the runway centerline and measure 3.6 meters long and 0.3 meters wide each. This configuration aligns with international aviation standards, which ensure consistency and clarity across airports globally. The use of eight stripes is adequate to provide visual guidance without overcrowding the runway surface.

In the context of aviation safety and operations, correctly identifying the threshold markings assists pilots in aligning their approach and managing their landing, making it crucial for efficient runway use.