Which of the following is NOT a method of communication for drivers?

The correct answer is identified as speedometers because they serve a different purpose than the other options listed. Speedometers display the vehicle’s speed to the driver, which aids in monitoring speed limits and ensuring safe driving, but they do not communicate intentions to others on the road. In contrast, turn signals, brake lights, and vehicle position are all crucial methods of communication for drivers that signal intentions to other motorists and pedestrians.

Turn signals convey to other drivers when a driver intends to change lanes or make a turn, which is essential for preventing accidents and enhancing road safety. Brake lights inform following vehicles that the driver is slowing down or coming to a stop, providing crucial information that can help avoid rear-end collisions. Vehicle position, or the way a car is positioned in relation to others on the road, signals a driver’s current movements and intentions, such as merging or preparing for a turn.

Therefore, while a speedometer is vital for the driver's awareness of vehicle speed, it does not facilitate communication with others, making it the correct choice for the question.