As stand-on electric pallet trucks are widely applied in logistics distribution centers, retail back-end storage and manufacturing material handling scenarios, operators usually spend 6 to 8 hours standing on the platform for continuous material transfer every workday. The comfort level of the operator platform is no longer a secondary experience indicator, but a core factor closely related to operation safety, work efficiency and long-term occupational health of frontline staff. The dimension parameters of the operator platform serve as the foundational measurable indicator for systematic comfort assessment, which supports relevant personnel to make objective evaluation instead of relying on vague subjective feelings.

The core dimension parameters that affect comfort cover multiple parts of the platform structure. The first is the standing area’s length and width data. Sufficient length allows operators to adjust their standing posture forwards and backwards properly according to different operation postures, avoiding long-term fixed posture caused by limited foot movement space that leads to calf soreness and ankle pressure. The reasonable width of the standing area reserves enough space for operators to turn their body sideways or adjust their standing position when observing the surrounding environment during steering, reducing the risk of accidental collision with the vehicle body. The second key parameter is the platform height from the ground. Proper height reduces the physical strength consumption when operators step on and off the platform frequently, and avoids the unnecessary leg strain caused by too large or too small height difference. The third parameter is the reserved buffer area around the standing position, which provides support space for operators to adjust their center of gravity during frequent acceleration and deceleration, and reduces the slip risk under non-slip mat matching condition.

When conducting comfort assessment with these dimension parameters, the evaluation logic should be combined with actual operation scenarios rather than judged by single parameter value. For scenarios that require long-distance continuous transportation of goods, the comfort assessment should focus on whether the standing area dimensions leave enough support space for the operators' feet to move and rest. For scenarios that require frequent picking and drop-off of goods with multiple step-on and step-off actions, the comfort assessment should prioritize the rationality of the platform height parameter. For scenarios with narrow operation aisles and frequent steering actions, the evaluation should also balance the platform dimension parameters and the overall vehicle body size, to avoid excessive platform occupation of aisle space that reduces the flexibility of the whole vehicle.

In the actual assessment process, it is also necessary to refer to the physical characteristics of the main operator groups in the actual working scenario, to make reasonable matching of platform dimension parameters. Reasonable parameter design can effectively reduce the occurrence of muscle strain and other discomforts of operators during long hours of work, and create more stable operating benefits for the whole material handling process.