What is meant by 'Driving in marked lanes'?

'Driving in marked lanes' refers to the practice of staying within the designated lanes on the roadway. This is a critical aspect of traffic regulations designed to ensure that vehicles maintain orderly and predictable movements, which enhances safety for all road users. By adhering to the lane markings, drivers help to prevent accidents and promote efficient traffic flow.

The option regarding the use of turn signals, while an important practice for lane changes, does not directly define what it means to drive in marked lanes. Similarly, maintaining speed is important but does not pertain specifically to lane discipline. Driving regardless of lane markings contradicts the concept of driving in marked lanes, as it suggests a disregard for the established boundaries and rules. Therefore, the focus is on the necessity of remaining within the designated lines to ensure safe and responsible driving behavior.