What is the required stopping distance for passenger cars during the service brake test at a speed of 20 mph?

In Maryland, the required stopping distance for passenger cars during the service brake test at a speed of 20 mph is indeed 25 feet. This standard is based on the need to ensure that a vehicle can stop effectively and safely under controlled conditions, which is essential for public safety. During inspections, it is critical to verify that the braking system functions well enough to achieve this stopping distance, as it reflects the vehicle's overall braking efficiency and safety features.

The specification of 25 feet at 20 mph is grounded in the principles of vehicle dynamics and the expectation that vehicles are equipped with properly functioning brakes. This benchmark allows inspectors to confirm that the braking performance meets regulatory requirements, thereby helping to prevent potential accidents associated with brake failure.

Furthermore, knowing the required stopping distance helps technicians and vehicle owners understand the implications of their vehicle's braking system and motivates necessary maintenance practices to keep vehicles safe for road use.