MPI Professional Driver's License Manual Practice Test 2025 - Free Professional Driver's License Practice Questions and Study Guide

The correct answer is based on established safety regulations that dictate the minimum following distance required for commercial vehicles, particularly when they are operating in close proximity to one another. A distance of 90 meters is recommended to ensure adequate stopping time and provide a safe buffer in case of emergencies.

Maintaining this space allows drivers to react effectively to sudden changes in traffic conditions, such as unexpected stops or slowdowns from the vehicle ahead. Given the larger size and weight of commercial vehicles, they require a longer distance for braking compared to lighter vehicles, making this requirement critical for road safety.

Choosing a following distance that is shorter can increase the risk of collisions, as it may not provide enough time for the trailing vehicle to respond to the lead vehicle's actions. Thus, a 90-meter minimum following distance not only enhances safety for the drivers but also for all road users by reducing the likelihood of accidents.