What is the primary purpose of checking mirrors and blind spots before driving maneuvers?

The primary purpose of checking mirrors and blind spots before performing driving maneuvers is to avoid collisions with other vehicles. This safety practice ensures that the driver is aware of the area around their vehicle and can identify any potential hazards that may not be visible in the mirrors alone. Blind spots, in particular, are areas that cannot be seen directly in the mirrors, which is why physically checking these spots is essential before changing lanes, merging, or making turns.

Being vigilant about one's surroundings helps prevent accidents by allowing the driver to make informed decisions based on the positions and movements of other vehicles, pedestrians, and obstacles. This practice significantly contributes to road safety by promoting awareness and proactive driving behavior, which is critical in busy environments like city streets.