Why are mirrors essential on commercial vehicles?

Mirrors are essential on commercial vehicles primarily because they provide visibility of blind spots. Commercial vehicles, due to their large size, have areas that are not visible to the driver through standard windows or the rearview mirror. These blind spots can pose significant safety hazards, especially when changing lanes or making turns. By using properly adjusted mirrors, drivers can gain a more comprehensive view of the road and surrounding vehicles, thereby improving their ability to make safe driving decisions.

While it is true that mirrors are often required by law and can play a role in safety regulations, the critical function they serve in enhancing visibility of blind spots is the most urgent and practical reason for their necessity in commercial vehicle operation. Understanding and utilizing mirrors effectively is integral to maintaining safety on the road for the driver, passengers, and other road users.