Drivers' warnings are signs that are placed along roads to alert drivers of potential hazards or to remind them of the rules of the road. The term FORES is an acronym for 'Frequent Occurrences Requiring Extra Safety, ' which is a type of warning sign used to alert drivers of frequent occurrences that require extra caution. These signs are typically used in areas where there is a high risk of accidents due to the presence of wildlife, sharp curves, or other hazardous conditions.