What does a flashing amber (yellow) signal light mean at an intersection?

A flashing amber (yellow) signal light at an intersection indicates that drivers should slow down and approach the intersection with increased caution. This signal serves as a warning that the traffic rules may differ from the norm, such as a potential pedestrian crossing or an intersection that experiences frequent stops from other traffic.

When a driver sees a flashing amber light, it signals that they are entering a potentially hazardous area and need to be alert. It's essential to watch for other vehicles, pedestrians, and any changes in traffic conditions. The emphasis is on the need for caution rather than making an abrupt stop or treating it like a yield sign. The driver should be prepared for unexpected occurrences, thus ensuring safety for themselves and others.

In comparison, the other options imply immediate stopping or preparing to stop without the emphasis on reduced speed and heightened awareness, which is the main intent of the flashing yellow signal.