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Thursday, July 2, 2026

Shelter Supply, Demand and Capacity

 


My work has focused on predicting the shelter capacity, intensity, intrusion, and context implications of correlated site planning and floor quantity design decisions at the cellular (parcel) level of urban anatomy -- because the shelter capacity of land within limited geographic areas will define our ability to shelter growing population activity within contained areas designed to coexist with their remaining source of life, the Natural Domain. As a result, the building classification system and template format of standardized design specification topics derived can also be used to measure the template topics of existing shelter projects to determine their implications for comparison.

POPULATON GROWTH

Population growth seeking shelter for increasing activity is the engine that drives all urban and rural construction. This engine will continue to consume agriculture and our source of life, the Natural Domain, until we realize the issue is much larger than land use compatibility. Ensuring compatibility simply produces an expanding Built Domain of metastasizing shelter cells attempting to consume their source of life.

SHELTER CAPACITY

Tegimenics, or shelter capacity evaluation, is based on building design classification categories and evaluation of template design specifications that define options, predict their implications, and compare them to existing conditions measured with the same template yardstick. It is one way to build the knowledge and credibility needed to argue for adequate shelter within sustainable, symbiotic limits.

The goal, in my opinion, is to provide shelter for the many activities of growing populations within geographic limits defined to protect their quality and source of life. We cannot pursue this at the present time without the templates, algorithms, and master equations needed to measure the shelter capacity of land and evaluate the lifestyle implications of development and redevelopment decisions with improved comparative knowledge.

Shelter capacity is gross building area present in square feet per buildable acre occupied. The amount that can be provided per buildable acre is a function of the land remaining for building cover and parking after all other present or planned pavement and open space areas are subtracted. I’ve called this the “core area” remaining. The mathematical relationship between parking requirements and floor quantity options in the core area determines the building cover, or footprint area remaining for shelter in square feet. When floor quantity options are multiplied by the footprint available, the result is the gross building area options present or planned. Gross building area is the raw material of shelter formation. It can accommodate any permitted activity and is served by a city’s movement, open space, and life support systems. Fortunately, gross building area, shelter capacity, intensity, intrusion, and context can  be measured and/or predicted with the equations and templates of urban design.

The templates that use these equations to forecast and/or measure the implications of shelter capacity are listed in Table 1. Explanations for each chapter are presented in my book, “The Equations of Urban Design”. It can be found at the following url:

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

COMPARISON AND EVALUATION

The results predicted or measured using the templates of shelter capacity evaluation are comparable because they are based on the same standardized template of requested quantity measurements. This establishes comparison and evaluation as a quantitative foundation for the pursuit of increased knowledge.

The optional design specification values that produce shelter capacity, intensity, intrusion, and context are not all desirable. The challenge will be to identify those capable of sheltering the activities of increasing populations within limited geographic areas designed to protect both their quality and source of life.

IMPLICATIONS

Gross building area is shelter that may be occupied by any permitted activity. The distribution of shelter capacity and activity throughout a city establishes the physical intensity, intrusion, and context of its social, psychological, environmental, and economic quality of life. This distribution can no longer be left to chance if we are to have any chance of reconciling a city’s economic foundation with the planet’s capacity to sustain life.

BUILD YOUR OWN

The template examples in each chapter of “The Equations of Uban Design” display all equations needed to reproduce the template format. Producing your own will give you the ability to evaluate design quantity decisions and correlate the shelter capacity of land with its economic potential, as well as its context and quality of life implications based on the comparative knowledge acquired.

The last pages of each chapter in “The Equations of Urban Design” contain the derivation of the master equations used by each template to predict gross building area or buildable land area options from the correlated design specification values entered. The capacity, intensity, intrusion, and context implications of these measurements or predictions are calculated in each column of each template’s Implications Module for consistent comparison and evaluation. The implication equations involved are noted at the head of each implication column.

CONCLUSION

I believe it is a self-evident fact that every herd on the planet is subject to the planet’s unwritten law of limits, and that it grows until it exceeds these limits. We are no different, but we are the only herd given the ability to anticipate these limits and act accordingly. It means, however, that we must accept the challenge before we antagonize a planet that does not compromise with ignorance.

Walter M. Hosack, July 2026

NOTE: Table 1 is an improvement of the Table of Contents in "The Equations of Urban  Design".