What does the zipper marking on the ground signify?

The zipper marking on the ground is a crucial visual indicator, particularly in airport environments, signaling to drivers not to cross or go beyond that line. This marking typically serves to establish clear boundaries and delineate areas where vehicles should not enter, ensuring safety and order on the tarmac.

Completing a safe operation in such high-traffic sections like runways or taxiways is vital, as it helps prevent accidents and unauthorized access to sensitive areas. The presence of the zipper marking communicates that vehicles must remain on their designated paths and avoid areas that could pose risks not only to themselves but also to aircraft and airport personnel.