What does a diamond sign with a red stop in the middle and a black arrow at the top indicate?

A diamond sign with a red stop in the middle and a black arrow at the top clearly indicates that vehicles must stop ahead at the intersection. This type of warning sign is designed to alert drivers that they need to prepare to come to a complete stop before proceeding, typically because there is an intersection or a similar condition that requires caution. The presence of the red stop symbol is a universal indicator of the need to stop, while the arrow provides directional guidance about the specific point at which the stop is required. This design aims to enhance safety by ensuring drivers are aware of potential hazards they may encounter.