Final answer:
Commentary driving keeps drivers alert and focused by having them verbally narrate their driving actions and observations, which engages their attention and helps prevent distractions.
Step-by-step explanation:
Commentary driving is a technique that helps to maintain drivers' attention on the road and to enhance road safety. It involves the driver narrating their actions and observations while driving, which helps to keep the driver alert and focused. By verbalizing what they see, such as traffic signals, potential hazards, or their current speed, drivers are more engaged in the driving process and less likely to become distracted.
In the provided scenario, Peter experiences frustration due to another driver's adherence to the speed limit, which highlights the need for patience and awareness while driving. Commentary driving can benefit in such situations by helping drivers to maintain focus on their own actions and surroundings, rather than on perceived inconveniences caused by other road users.