👉 A foreglow is a visual signal that indicates a significant change in the state of an object, such as a vehicle or a person, as it moves through a particular area. This can be seen on a map, radar display, or other visual display systems. Foreglows are often used to alert drivers of potential hazards or changes in traffic flow. They can also serve as a warning for pedestrians and cyclists, indicating that they should slow down or take extra care when approaching an object moving through
