What type of surface is least suitable for forklift operation?

Gravel surfaces are least suitable for forklift operation due to their instability and uneven texture. When operating a forklift, a stable and even surface is essential for safety and control. Gravel can shift under the weight of the forklift, leading to a higher risk of tipping or losing control, particularly when making turns or maneuvering in tight spaces. Furthermore, the uneven nature of gravel can make lifting and lowering loads unstable, posing hazards to both the operator and other personnel in the vicinity. In contrast, concrete flooring, paved roads, and interlocking tiles provide a sturdy, smooth base that supports the weight of the forklift and its load, allowing for safer and more efficient operations.