Final answer:
The correct statement for grooved pavement aimed at reducing skidding and enhancing safety in wet weather, especially for motorcyclists, is 'Grooved Pavement Ahead'. Safety grooving was designed for runways and then expanded to roadways.
Step-by-step explanation:
The question is related to signs and signals that are commonly encountered while driving. When grooves have been cut into the pavement to decrease the risk of accidents in wet weather by increasing traction, drivers and especially motorcyclists should exercise caution. The correct statement that best represents this scenario is 'Grooved Pavement Ahead'. This method, known as safety grooving, was initially developed to prevent aircraft accidents on wet runways. It was tested and originated from Langley Research Center. Due to safety grooving, skidding is reduced, and the stopping distance for vehicles is significantly decreased, enhancing overall road safety in adverse weather conditions.