The Announcement sign one-stripe (100 m) execution according to RWBA is a traffic sign that indicates upcoming work or construction on the road within 100 meters. This sign alerts drivers to prepare for potential changes in traffic flow, such as reduced speed limits, lane closures, or detours.

Drivers should be cautious and attentive when approaching this sign, as it signals that they may need to navigate around obstacles or adjust their driving behavior to ensure safety on the road. Always comply with any additional signs or signals that may accompany this warning to ensure a smooth and safe passage through the work area.