What is the function of the speedometer in vehicle inspections?

The function of the speedometer in vehicle inspections is primarily to ensure its accuracy for safe driving behaviors. An accurate speedometer provides vital information to the driver about their speed relative to speed limits and surrounding traffic conditions. This helps prevent speeding, which can lead to accidents, injuries, and legal consequences. A speedometer that is not functioning correctly could mislead the driver, potentially resulting in unsafe driving practices. Ensuring its accuracy is, therefore, a critical element of vehicle safety inspections to promote safe operation on the road.

While measuring fuel efficiency or tire wear may be relevant to a vehicle's overall performance and maintenance, these tasks are not the primary function of the speedometer. Similarly, stating that the speedometer is not part of the inspection process overlooks its essential role in maintaining road safety.