6 .121 die of natural causes or accidents. Marriages, divorces, and remarriages are likely. This section undertakes the translation of environmental requirements to spaces, structures, and services through an architectural design process. The product of the process is a preliminary detailed design. This design is not a set of construction documents; it is a suggested framework which specifies certain features: land use, facilities size, building services location. Within these constraints remains flexibility to change use, and expandability and subtractibility to satisfy life-cycle transitions. The process of living with the community over time is important to the concept of the place and influences the colony's ability to enrich colonists' lives during their tenure at the LS prototype. The process is divided into five steps. First, an image of the community is proposed. The image responds to the requirements for living space and fixes a reference for further expansion and clarification of the concept. Next, a range of activities defines the image and suggests a list of facilities needed to house them. Third, a habitable space program lists activities and defines for each its size, services needed, and proximities desired to other activities. A land use plan then allocates activities and facilities to the predetermined living space areas of the colony. Schematic design is the fifth step, transforming the space program's words and numbers to building masses and conceptual ground plans;at this point building systems are introduced. Passive systems--structure and envelope--are established in conformance within the requirements of colony structural design, and active systems--heating, ventilation, air conditioning, plumbing, electricity, fire suppresion--are explored. VI.12.2: Image of the Prototype Community: How could the prototype colony respond to the needs of its users, satisfy the required space standards, remain efficient and functional within the guidelines of the prototype and yet be a comfortable place for a diverse group of people to live for 30 years? Design of the overall colony has identified the areas for community development: along the base of the endcaps adjacent to the agricultural area. This location is one of
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