Mixed Reality Architecture: a dynamic architectural topology

Architecture can be shown to structure patterns of co-presence and in turn to be structured itself by the rules and norms of the society present within it. This two-way relationship exists in a surprisingly stable framework, as fundamental changes to buildings are slow and costly. At the same time, change within organisations is increasingly rapid and buildings are used to accommodate some of that change. This adaptation can be supported by the use of telecommunication technologies, overcoming the need for co-presence during social interaction. However, often this results in a loss of accountability or ‘civic legibility’, as the link between physical location and social activity is broken. In response to these considerations, Mixed Reality Architecture (MRA) was developed. MRA links multiple physical spaces across a shared 3D virtual world. We report on the design of MRA, including the key concept of the Mixed Reality Architectural Cell, a novel architectural interface between architectural spaces that are remote to each other. An in-depth study lasting one year and involving six office-based MRACells, used video recordings, the analysis of event logs, diaries and an interview survey. This produced a series of ethnographic vignettes describing social interaction within MRA in detail. In this paper we concentrate on the topological properties of MRA. It can be shown that the dynamic topology of MRA and social interaction taking place within it are fundamentally intertwined. We discuss how topological adjacencies across virtual space change the integration of the architectural spaces that MRA is installed in. We further reflect on how the placement of MRA technology in different parts of an office space (deep or shallow) impacts on the nature of that particular space. Both the above can be shown to influence movement through the building and social interaction taking place within it. These findings are directly relevant to new buildings that need to be designed to accommodate organisational change in future but also to existing building stock that might be very hard to adapt. We are currently expanding the system to new sites and are planning changes to the infrastructure of MRA as well as its interactional interface

Visualization in spatial modeling

This chapter deals with issues arising from a central theme in contemporary computer modeling - visualization. We first tie visualization to varieties of modeling along the continuum from iconic to symbolic and then focus on the notion that our models are so intrinsically complex that there are many different types of visualization that might be developed in their understanding and implementation. This focuses the debate on the very way of 'doing science' in that patterns and processes of any complexity can be better understood through visualizing the data, the simulations, and the outcomes that such models generate. As we have grown more sensitive to the problem of complexity in all systems, we are more aware that the twin goals of parsimony and verifiability which have dominated scientific theory since the 'Enlightenment' are up for grabs: good theories and models must 'look right' despite what our statistics and causal logics tell us. Visualization is the cutting edge of this new way of thinking about science but its styles vary enormously with context. Here we define three varieties: visualization of complicated systems to make things simple or at least explicable, which is the role of pedagogy; visualization to explore unanticipated outcomes and to refine processes that interact in unanticipated ways; and visualization to enable end users with no prior understanding of the science but a deep understanding of the problem to engage in using models for prediction, prescription, and control. We illustrate these themes with a model of an agricultural market which is the basis of modern urban economics - the von Thünen model of land rent and density; a model of urban development based on interacting spatial and temporal processes of land development - the DUEM model; and a pedestrian model of human movement at the fine scale where control of such movements to meet standards of public safety is intrinsically part of the model about which the controllers know intimately. © Springer-Verlag Berlin Heidelberg 2006

Samuel Bentham's Panopticon

Credit for devising the Panoptical ‘inspection principle’ for prison design is attributed, perhaps now irrevocably, to Jeremy Bentham. However Jeremy always insisted that the original conception came from his younger brother Samuel – ‘After all, I have been obliged to go a-begging to my brother, and borrow an idea of his’. Samuel was to have been an equal partner in the running of Jeremy’s Panopticon penitentiary. What is more, while Jeremy failed to get the penitentiary built in England despite twenty years’ lobbying and a large expense of his own money, Samuel actually erected a Panoptical ‘school of arts’ in Russia in 1807. In this paper I describe this remarkable Russian building, which has received only passing mention in the literature of architectural history and Bentham studies. The building admittedly in its short life had little influence outside Russia; but it anticipated in its geometry the many ‘radial prisons’ built across the world in the later Nineteenth Century. Indeed Samuel’s design avoided some of the contradictions that beset Jeremy’s own detailed penitentiary scheme of 1791 – contradictions which led to the failure of several of those prisons that put Jeremy’s plan directly into practice

How to support growth with less energy

There is considerable potential to support growth with less use of primary energy and lower carbon emissions. This can be achieved through technical solutions (existing and new), as well as behavioural change. The goal of securing growth with lower carbon emissions is just one of several strategic goals that need to be satisfied. Of the others, the need to develop alternatives to an energy system heavily dependent on oil and natural gas and to maintain security of energy supply are likely to be the most important. The strategic goals are to achieve major reductions in the energy intensity of transport, buildings in use, and to achieve corresponding reductions in energy intensity of the major building materials. Key challenges associated with these strategic goals include: • the development of technologies to produce carbon-free cement, carbon-free steel, carbon-free glass • enabling infrastructural developments that provide a framework for a wide range of low-carbon technologies and increase energy diversity and security of supply • identification of key energy-efficiency tipping points and the construction of technology policy • development of methane-fired modular fuel cells • improved capabilities to model whole energy systems, i.e. adequately modelling both demand and supply, social/economic as well as technical, and assessing the impact outside of the UK system boundary • better low-carbon planning and improved co-ordination of planning, building control and other policy tools • better monitoring and feedback on the real performance of energy efficient technologies. The implication of the Energy White Paper goal of reducing CO2 emissions by 60% by 2050 is a six-fold reduction in the carbon intensity of the UK economy. In the longer run, it is clear that we will move towards a carbon-free economy. Within this transition, developments in supply, distribution and end-use technologies will be multiplicative, while action to constrain demand growth is crucial to the rate of the overall transition

The impact of regulations and legislation on residential built forms in Tehran

This paper addresses the challenges posed by the framing of planning law, as it affects the built forms of cities. These are challenges faced by many cities worldwide, especially those undergoing rapid change. The paper explores the role of planning controls and building regulations in shaping the built form of one of the world’s fastest growing cities, Tehran. Comparisons are drawn with the historic and contemporary effects of regulations in Paris, New York and Hong Kong. There are generic implications for planning legislation in other cities. The approach taken to the research is a combination of historical investigation with some simple geometrical analysis of housing layout. The built form and urban layout of Tehran’s residential streets in particular seem to be the result of a complex process of limits imposed by planning codes and generic functions together with cultural changes and desires for modernisation. However, the influences and effects of urban parameters such as block size and proportion, as well as built form parameters such as building shape and depth are mediated by building regulations. Starting with a brief introduction to the housing sector in Iran, some primary and extremely influential housing regulations are discussed in the paper and an investigation is made to find out where they came from and the reasons behind their enforcement. The paper uncovers the role planning codes have played not only in limiting and regulating but also, as an indirect effect, encouraging and introducing new types of house. It also briefly presents the effects of regulations in other cities like New York and Paris to demonstrate that simple physical codes can have large morphological and aesthetic effects on the cityscape. It is argued that these regulations are enforced with the purpose of controlling the quality of the built environment and preventing over-crowding; however, their secondary and unintended effects on the quality of cityscape, street facade and the interior of buildings (in terms of day-lighting and ventilation) have not been considered at the appropriate scale. The paper concludes with some remarks about the importance of regulations, not only as tools to control the quality of the built environment and the overall density, but also as shaping forces in determining the built forms of cities, in their parts (buildings) and the cityscape as a whole

A comparative study of benchmarking approaches for non-domestic buildings: Part 1 – Top-down approach

Benchmarking plays an important role in improving energy efficiency of non-domestic buildings. A review of energy benchmarks that underpin the UK’s Display Energy Certificate (DEC) scheme have prompted necessities to explore the benefits and limitations of using various methods to derive energy benchmarks. The existing methods were reviewed and grouped into top-down and bottom-up approaches based on the granularity of the data used. In the study, two top-down methods, descriptive statistics and artificial neural networks (ANN), were explored for the purpose of benchmarking energy performances of schools. The results were used to understand the benefits of using these benchmarks for assessing energy efficiency of buildings and the limitations that affect the robustness of the derived benchmarks. Compared to the bottom-up approach, top-down approaches were found to be beneficial in gaining insight into how peers perform. The relative rather than absolute feedback on energy efficiency meant that peer pressure was a motivator for improvement. On the other hand, there were limitations with regard to the extent to which the energy efficiency of a building could be accurately assessed using the top-down benchmarks. Moreover, difficulties in acquiring adequate data were identified as a key limitation to using the top-down approach for benchmarking non-domestic buildings. The study suggested that there are benefits in rolling out of DECs to private sector buildings and that there is a need to explore more complex methods to provide more accurate indication of energy efficiency in non-domestic buildings