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G. Suter:
"Modeling multi-level spaces with network-based space layouts: a case study";
Talk: 21th Workshop of the European Group for Intelligent Computing in Engineering, Cardiff, Wales, United Kingdom; 2014-07-16 - 2014-07-18; in: "21th Workshop of the European Group for Intelligent Computing in Engineering", (2014), 10 pages.

Space layouts are used throughout the building life-cycle to model spaces and
related objects. In building design, layouts created by architectural designers are reused
by building services designers to develop lighting, heating, ventilation, and air conditioning,
security, and safety systems. In previous work, the author has proposed a schema for
network-based space layouts that supports space modeling in multiple domains. Operations
have been defined to generate and analyze space layouts. Single-level as well as multilevel
spaces, such as stairways or atriums, may be modeled in a uniform manner in order
to minimize model complexity and modeling effort. By contrast, coverage of multi-level
spaces in existing space modeling methods is limited. The objective of this paper is to show
how multi-level spaces may be modeled based on the mentioned space layout schema and
operations. This is done by means of a case study of an existing facility. At first, an architectural
layout of the facility is created in a commercial BIM system. In accordance with
common practice, multi-floor spaces are modeled by multiple, single-floor spaces. Layout
operation expressions are developed and evaluated to automatically generate a pedestrian
circulation and an artificial lighting layout. Multi-floor spaces are generated from their constituent
single-floor spaces in the architectural layout. Generated layouts are assessed by
visual inspection. Modifications of the original layout schema that were necessary to cover
multi-level spaces are discussed.

Space layouts are used throughout the building life-cycle to model spaces and
related objects. In building design, layouts created by architectural designers are reused
by building services designers to develop lighting, heating, ventilation, and air conditioning,
security, and safety systems. In previous work, the author has proposed a schema for
network-based space layouts that supports space modeling in multiple domains. Operations
have been defined to generate and analyze space layouts. Single-level as well as multilevel
spaces, such as stairways or atriums, may be modeled in a uniform manner in order
to minimize model complexity and modeling effort. By contrast, coverage of multi-level
spaces in existing space modeling methods is limited. The objective of this paper is to show
how multi-level spaces may be modeled based on the mentioned space layout schema and
operations. This is done by means of a case study of an existing facility. At first, an architectural
layout of the facility is created in a commercial BIM system. In accordance with
common practice, multi-floor spaces are modeled by multiple, single-floor spaces. Layout
operation expressions are developed and evaluated to automatically generate a pedestrian
circulation and an artificial lighting layout. Multi-floor spaces are generated from their constituent
single-floor spaces in the architectural layout. Generated layouts are assessed by
visual inspection. Modifications of the original layout schema that were necessary to cover
multi-level spaces are discussed.

Building information modeling, Space modeling, Multi-view modeling