Washington Written Drivers Permit Practice Test

What is a safe distance to keep between your vehicle and the car in front of you?

1. 1 car length

2. 2 seconds behind the car

3. 3 feet

4. 4 seconds behind the car

The correct answer is: 2 seconds behind the car

Maintaining a safe distance between your vehicle and the car in front of you is crucial for ensuring sufficient reaction time in case of sudden stops or emergencies. The two-second rule is a widely accepted guideline that helps drivers determine a safe following distance. By using this rule, you measure the time it takes from when the vehicle in front of you passes a fixed point (like a sign or tree) to when your vehicle reaches that same point. If this time is less than two seconds, you're following too closely. This method accounts for different speeds, road conditions, and the stopping capabilities of your vehicle. It allows for a more dynamic and appropriate following distance that adjusts based on various factors such as traffic flow and weather conditions. In contrast, a fixed distance like one car length or three feet may not provide adequate space, especially at higher speeds where stopping distance increases significantly. The four-second rule, while even safer, might not always be practical in heavy traffic situations. Therefore, the two-second rule strikes a balance, providing a reliable standard for safe driving practices.