A 3D model of a cable-stayed bridge, featuring sleek metallic towers, glass deck, and diagonal cable stays, with a modern minimalist aesthetic. It has clean lines and high detail, suitable for architectural design displays and engineering visualization.

A 3D model of a two-way traffic sign, featuring a red border, white background, and black up/down arrows, with a classic triangular warning sign design. It has low polygon count and high detail, suitable for road safety references and 3D traffic modeling.

A 3D model of a pedestrian crossing sign, featuring a red circular border, white background, black pedestrian symbol, and black-and-white striped pole, with a regulatory design. It has detailed 3D rendering and is suitable for road safety and pedestrian zones.

A 3D model of a road closure and detour sign with barriers, featuring rusted metal, black/yellow striped barriers, orange detour arrow, and "ROAD CLOSED" text, a high-visibility warning aesthetic. It has low polygon count and is suitable for road construction or traffic management scenarios.