What does the term "impaired driving" refer to?

The term "impaired driving" specifically refers to operating a vehicle while under the influence of drugs or alcohol. This definition encompasses a range of substances that can affect a driver’s ability to operate a vehicle safely, including legal and illegal drugs, prescription medications, as well as alcohol. Impaired driving is a serious offense because it significantly increases the risk of accidents and endangers both the driver and others on the road.

In contrast, the other options describe different types of traffic violations. Driving without a seatbelt is a safety violation that does not involve impairment, while speeding in residential areas pertains to speed limits and the safe operation of a vehicle. Parking in a no-parking zone is related to parking regulations rather than the condition or capability of the driver when operating the vehicle. Each of these actions can pose risks on the road but do not fall under the definition of impaired driving.