How to Control Speed on Long Downhill Slopes?
1 Answers
Before entering a long downhill slope, reduce the vehicle speed to ensure a slow entry into the descent. Shift into an appropriate gear before the descent, typically second or third gear, and avoid shifting gears after entering the downhill section. Control the speed primarily using the engine's braking effect, supplemented by foot braking, and never coast in neutral. Adjust the speed to a controllable level based on the slope and curve conditions, and select the appropriate gear. Below are guidelines for gear usage on downhill slopes: 1. On downhill slopes, never coast in neutral; always engage an appropriate gear to utilize the engine's braking effect and reduce coasting speed. 2. On long downhill slopes, if the brakes fail, human reaction time is required, during which the downhill speed can increase rapidly. At certain speeds, it may become difficult to shift gears—older vehicles might handle it better, but modern vehicles could experience gear grinding. In such situations, failing to engage a gear promptly is extremely dangerous, as a second can be life-determining. Hence, shifting gears on long downhill slopes is essential for speed control. 3. Use brakes cautiously on downhill slopes. Before descending, test the brake performance to ensure it is functioning properly. If any faults are detected, resolve them before proceeding downhill.
