What does unsafe backing on a highway refer to?

Unsafe backing on a highway specifically refers to the act of reversing a vehicle in a manner that poses a danger to both the driver and surrounding traffic. This situation could include backing without sufficient visibility, reversing into moving traffic, or failing to yield to other vehicles or pedestrians. It is considered a violation because it can lead to accidents or impede the flow of traffic.

The other scenarios listed, while potentially unsafe, do not specifically relate to backing, which is why they do not accurately describe unsafe backing on a highway. Failing to signal a stop pertains to not communicating intentions to other drivers, making a U-turn on a curve or hill can obstruct visibility for the driver and other motorists, and improper lane change relates to changing lanes without adhering to traffic laws. All of these actions can be hazardous, but only backing a vehicle improperly directly aligns with the definition of unsafe backing on a highway.