Why is it important to use a helper when backing?

Using a helper when backing is important due to the presence of blind spots that the driver cannot see. Large commercial vehicles often have significant areas around them that are not visible through mirrors or windows, which can create hazardous situations during reversing maneuvers. Having a helper, often referred to as a ground guide, can enhance safety by providing a clear line of sight to obstacles or pedestrians that the driver might not be able to detect. This extra set of eyes can help ensure that the vehicle backs up safely and with awareness of the environment, thereby reducing the risk of accidents or collisions. The helper can communicate with the driver to signal when it's safe to proceed, contributing to better overall situational awareness.