What color(s) indicate the track surface deterioration or debris?

The color combination of red and yellow stripes is used to signify deteriorating track surfaces or the presence of debris on the racing surface. This warning is crucial for drivers, as it alerts them to potentially hazardous conditions that could affect their safety and performance during a race. Recognizing this indication allows drivers to adjust their speed and maneuvers accordingly to navigate safely around the affected areas.

The other color combinations, while having their specific meanings, do not pertain to track surface conditions. For example, blue and white checkered flags are traditionally used to indicate the end of a race. Green and black, or any orange and pink combinations, do not correspond to official flags used for communicating track condition warnings and would not effectively convey the same urgent need for caution from drivers. Understanding these signals is essential for maintaining safety and competitive integrity in motorsport events.