What is the legal requirement regarding coasting with manual transmission vehicles on downgrades?

In Tennessee, the legal requirement regarding coasting with manual transmission vehicles on downgrades is that coasting with the clutch depressed is prohibited. This regulation is in place for safety reasons. When a driver depresses the clutch while descending a hill, the vehicle is able to roll freely without engine braking. This can lead to a loss of control because the driver has less ability to manage vehicle speed effectively. Additionally, the lack of engine braking means the vehicle could gain speed quickly, making it difficult to stop safely.

Maintaining the vehicle in gear while going downhill provides additional control over speed, allowing the driver to respond effectively to any situation that may arise, such as needing to slow down or stop suddenly. By keeping the vehicle in gear, the engine can help to slow the vehicle down, promoting safer driving practices. Therefore, avoiding coasting with the clutch depressed aligns with promoting safer driving habits and ensuring better control of the vehicle in dynamic conditions.