Michigan Commercial Driver's License (CDL) Practice Exam

The maximum speed limit for trucks on Michigan interstate highways is set at 65 mph unless otherwise posted. This limit is designed to promote safety on the roads, accounting for the differences in vehicle size and handling characteristics compared to passenger vehicles. The law aims to reduce the risk of accidents by encouraging all vehicles, particularly heavier trucks, to travel at speeds that are more manageable and predictable. While there may be circumstances where certain sections of highways permit higher speeds for passenger vehicles or are posted with different limits, 65 mph stands as the default for trucks, ensuring compliance with state traffic regulations. This regulation helps create a more uniform traffic flow, reducing the chances of speed differentials that could lead to dangerous situations.