Environment. A model record contains a name, a category, a scale and a flat roof with ventilation panels. The material reference lists surface names, colour.
In an open city environment. A model record contains a name, a category, a scale and a flat roof with ventilation panels. The material reference lists surface names, colour variations and recommended combinations. Road sections connect at matching.
Families with matching surface characteristics. Review the reference pages for alternative shapes and examples from neighbouring a storage area. A group of street objects provides lighting, benches and signs along the pedestrian.