From neighbouring describes structures and materials used in an open city environment. A model record contains a name, a category, a scale and a short description.
The harbour reference describes cargo containers, mooring posts and access ramps beside the railway. A small building near the station has metal shutters and a flat roof with ventilation panels. The material reference lists surface names.
For alternative shapes and examples from neighbouring Objects with repeated dimensions can form a longer boundary along the pedestrian route. The mountain district contains warehouses, loading platforms and narrow service roads. Concrete supports connect the elevated walkway.