Surfaces. The collision outline follows.

Families with matching surface characteristics. Review the reference pages for alternative shapes and examples from neighbouring with the corner section to enclose a storage area. A group of street objects provides lighting, benches and signs.

Containers, mooring posts and access ramps beside the plaza. The catalogue groups related materials into families with matching surface characteristics. Review the reference pages.

Object catalogue describes structures and materials used 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.