A 3D model of a traffic sign, featuring a red-bordered triangular shape with a black 'X' symbol, and a high-visibility warning aesthetic. It has a low-poly design with smooth edges and is suitable for road safety visualization or traffic simulation.

A 3D model of a pedestrian overpass, featuring a transparent roof, metal railings, and concrete pillars. It has a modern minimalist aesthetic, high polygon details, suitable for urban pedestrian crossing scenarios. Category: Pedestrian Overpass (corrected from "Other").

A 3D model of a deer crossing traffic warning sign, featuring a triangular red and white border with a black deer illustration, and a standardized safety aesthetic. It has low polygon count and precise detailing, suitable for road safety applications and driver warning. （类目纠正：traffic warning sign，原Other不准确，实际为交通警示标志）

A 3D model of a pedestrian overpass, featuring metal frame and glass panels, and a minimalist aesthetic. It has clean lines and is suitable for urban public spaces.