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Friday, July 17, 2026

SEEKING BALANCE - The Principles of Shelter Capacity Evaluation

 

This is a companion to the essay I recently published entitled, “Axioms and Economic Fundamentals of City Design”. In hindsight, it should have been written first, but the problem with ideas is that they rarely occur in order, at least for me.

1)      We live on a planet in a Built Domain constructed from the resources of its Natural Domain.

2)      We build shelter in the converted Built Domain to survive.

3)      The Built Domain expands to serve population growth by consuming land in the Natural Domain and agriculture in its anatomy.

4)      The Built Domain contains Urban and Rural Phyla. Both include Movement, Open Space, and Life Support Divisions that serve a Shelter Division.

5)      Building classification by parking system establishes a foundation for measurement and prediction of shelter capacity options for any given land area.

6)      We cannot plan for the limited use of land for shelter until we can accurately measure and predict the shelter capacity spectrum of options.

7)      All buildings used to shelter our activity fall into one of six building design classification categories, regardless of appearance:

a.      G1: All buildings that consume a portion of the core land area and are served by a surface parking lot around, but not under, the building on the same premise, excluding land reserved for future expansion. (Core land area is site plan remaining for building and parking cover after all other demands and liabilities are subtracted.)

b.      G2: All buildings that consume a portion of the core land area and are served by a surface parking around and/or under the building on the same premise, excluding land reserved for future expansion.

c.      S1: All buildings served by adjacent parking garage levels, spaces, and auxiliary surface parking that consume a portion of the core land area on the same premise.S2 All buildings and auxiliary surface parking served by an underground parking garage within the buildable land area of the premise.

d.      S2: All buildings and auxiliary surface parking served by an underground parking garage within the buildable land area of the premise.

e.      S3: All buildings and auxiliary surface parking served by a parking garage below the building within the core land area of the same premise

f.        NP: All buildings not served by surface or structure parking on the same premise.

8)      A building design category may be used to shelter any permitted activity in an activity group (generally referred to as a land use category) such as, but not limited to, the following:

a.      Residential

b.      Commercial

c.      Industrial

d.      Institutional

9)      The gross building area potential of a building design category on a given land area depends on the information entered in the Design Specification Template of its forecast model.

10) A gross building area forecast or measurement in square feet (GBA) divided by the buildable land anticipated or occupied in acres (BLAC) is a measurement of the  shelter capacity of the land utilized (SFAC). In other words, SFAC = GBA  / BLAC.

11) The spectrum of shelter capacity measurement ranges from excessively low to excessively high, and not all measurements and predictions are desirable.

12) A shelter capacity measurement has measurable intensity, intrusion, and context implications based on consistent implication equations included in every building design category forecast model.

13) Implication measurements are like blood pressure readings. They can be compared and evaluated to build knowledge regarding the physical, social, psychological, environmental, and economic results produced.

14)  The acquisition of shelter capacity knowledge depends on a consistent measurement and evaluation research program. (For instance, the first blood pressure readings were only the beginning of shared evaluation and comparison that led to medical knowledge.)

15) Implication measurements have been referred to as Tegimenic measurements after the Latin word for shelter, tegimen.

16) Tegimenic knowledge, or Tegimenology, can be used to guide leadership decisions that affect our ability to provide land for shelter in a Built Domain defined to protect its source of life, the Natural Domain.

17) In other words, shelter capacity evaluation, or Tegimenics, is a mathematical method of measuring or predicting the shelter capacity of land and measuring the human implications of these decisions.

FURTHER INFORMATION

Further information about the building design categories, design specification topics, prediction panels, and implication modules of shelter capacity forecast models, can be found in my book, “The Equations of Urban Design”, using the following url:

https://www.amazon.com/-/e/B001IR3ODO?ref_=pe_584750_33951330

You may also be interested in some of the 285 essays on my blog at www.wmhosack.blogspot.com. They address topics related to the use of shelter capacity evaluation forecast models and their implication measurement modules.

Walter M. Hosack, July 2026

 

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