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2       Intelligent sustainable building roadmap


            Cars are very heavily integrated with alarms and information messages all displayed through a single
            driver interface which may inform the driver of issues related to tire pressure, bulbs which have
            failed, engine performance issues and many other components.
            Current  generation  airplanes  are  all  designed  to  operate  using  "fly  by  wire"  meaning  that
            communications for all  of the operational aspects of the aircraft are carried over one or more
            communication backbones in a manner not dissimilar to that being advocated for an intelligent
            building.

            The difference between these two examples and the building industry is however the legislative
            requirements for reliability, safety, and accountability which do not apply in the same manner in
            the heavily divided building industry.

            Many  of  the  concepts  which  have  been  described  briefly  in  this  document  may  be  found  in
            documents  such  as  the  Technology  Roadmap  adopted  by  Industry  Canada  and  subsequently
            updated and reissued through Continental Automated Building Association (CABA) which has been
            a market driver in the development of industry discussion and cooperation related to intelligent
            building technologies.

            2.1  Subjective versus objective evaluation


            The objectives of intelligent buildings have been described in general terms but nevertheless there
            are often strenuous professional arguments as to what should be the primary objectives of an
            intelligent building. For example:

              Is  it  more  important  that  the  building  be  more  efficient,  i.e.,  that  the  operating  costs  are
                reduced?

              Or, is it more important that the effectiveness of individual occupants in the building are put as
                the most important objective.
            Depending  on  the  particular  structure,  its  purpose,  the  technologies  that  are  prevalent  in  the
            building, and other factors, there will often be different objectives. With ever rising energy and
            labour  costs  it  is  obvious  that  if  those  costs  can  be  kept  in  check,  or  preferably  reduced,
            opportunities for financial savings will provide an immediate return on any extra investment of
            building an intelligent building. A building which is operated continuously e.g., a hospital, or which
            is operated by individuals who pay fees such as condominiums are less likely to see immediate
            benefits from the functions available in intelligent buildings.

            By contrast when the building is one which should respond rapidly to dramatic changes, clearly the
            intelligent building will respond more effectively.
            The other significant component in deciding the evaluation and benefits of intelligence relates to
            whether the building is occupied by a consistent population such as in a residential building or
            whether the building is occupied by an itinerant population such as a sports arena, a concert hall,
            or even a hospital. In the latter example, the occupancy and therefore the building operating mode
            will change dramatically depending on whether there is an activity currently in progress or whether
            the activity is one which is not in progress.









            ITU‐T's Technical Reports and Specifications                                                  465
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