Catalogue groups related materials into families with matching surface characteristics. Review the reference pages for alternative shapes and examples from neighbouring metal shutters and a flat roof.
Entrances and reflective surfaces. The collision outline follows the primary shape and excludes decorative surface details. Objects with repeated dimensions can form a longer boundary along the side.
An industrial fence can be combined with the corner section to enclose a storage area. A group of street objects provides lighting, benches and signs along the pedestrian route. The mountain district contains warehouses, loading platforms.