How frequently should drivers check their rearview mirror for traffic behind them?

Checking the rearview mirror every 6-8 seconds is recommended because it allows drivers to maintain awareness of their surrounding traffic conditions without causing excessive distraction from the road ahead. This interval strikes a balance between staying informed about vehicles behind and focusing on immediate driving tasks.

By regularly checking the rearview mirror within this timeframe, drivers can ensure they are aware of vehicles that may be approaching from behind, which is essential for safe lane changes, merging, or responding to any potential hazards. This practice helps foster a habit of maintaining situational awareness that is critical for safe driving.

While more frequent checks can be beneficial in certain situations, such as during heavy traffic, the 6-8 second rule generally offers a practical guideline that contributes to overall road safety and effective vehicle control.