What does the term "no-zones" refer to?

The term "no-zones" specifically refers to areas around large vehicles, particularly trucks and buses, where the driver's visibility is restricted. These zones are critical to understand for both the safety of the larger vehicle's operator and other road users. Since large vehicles have larger blind spots due to their size, these no-zones represent areas where other drivers may be unseen by the truck driver, making it dangerous to linger there. It's important for drivers to be aware of these zones in order to avoid collisions when merging or passing large vehicles. Understanding no-zones helps promote safer driving habits, reducing accidents on the road.

The other options describe different concepts that do not pertain to visibility and safety regarding large vehicles. For example, prohibiting parking around commercial vehicles refers to regulations about where vehicles can stop, while zones where no vehicles are allowed to enter and sections of roadway under construction pertain to traffic regulations and construction zones, respectively.