Accuracy Assessment of Point Cloud Positioning of a Low-Cost Mobile Mapping System for Road Snow Observation

Key Points

• Evaluate the positioning accuracy of a low-cost mobile mapping system developed for road snow measurement.
• Developed a mobile mapping system combining LiDAR, GNSS, and INS for road snow measurement.
• Collected point cloud data from multiple locations in Nagaoka City between January and March 2025.
• Calculated relative and absolute positioning accuracy of the point clouds.
• Relative positioning accuracy decreased to 0.1-0.3m under poor satellite conditions.
• Under good satellite conditions (RTK Fixed), relative accuracy improved to 0.042m and absolute accuracy to 0.044m.
• The positioning accuracy is sufficient for practical applications in road snow measurement.