Abstract
Various post-occupancy evaluation schemes have been introduced for assessing building performance but one tailored for large-scale commercial buildings remains to be seen. Intended to develop a scheme for evaluating the performance of engineering facilities in existing commercial buildings, a multi-stage study was carried out in a dense-built metropolis – Hong Kong. Reported here is the part of work based on an extensive literature review. Considering the characteristics of relevant evaluation schemes, the requirements for useful performance evaluation and the criteria for selecting key performance indicators (KPIs), an integrated process-hierarchy model was formed for identifying applicable indicators for the intended scheme. A total of 71 indicators, classified into five categories: (i) physical, (ii) financial, (iii) task and equipment related, (iv) environmental, and (v) health, safety and legal, were identified. Their representations and their empirical applications, which are helpful for the strategic management of existing buildings, are also described.
Highlights
As technology continues to evolve, commercial buildings are increasingly equipped with sophisticated engineering facilities, including those that provide energy supply; fire detection and protection; refrigeration, cooling, heating and ventilation; water supply and drainage; lighting; vertical transportation; communication; security and alarm; and so on (Chartered Institution of Building Services Engineers 2015b)
Shortlist key performance indicators (KPIs) for use in the scheme; (ii) a questionnaire survey in Stage 2 to find out the levels of usefulness of the shortlisted KPIs; and (iii) a series of face-to-face interviews to determine importance weights of the KPIs and establish the intended evaluation scheme (Stage 3) as well as to determine performance levels of engineering facilities for validating the applicability of the scheme (Stage 4)
A new approach of using post-occupancy evaluation (POE) results embedded in building information modeling (BIM) has been adopted for providing feedback for building performance (Göçer et al 2015)
Summary
As technology continues to evolve, commercial buildings are increasingly equipped with sophisticated engineering facilities, including those that provide energy supply; fire detection and protection; refrigeration, cooling, heating and ventilation; water supply and drainage; lighting; vertical transportation; communication; security and alarm; and so on (Chartered Institution of Building Services Engineers 2015b). In addition to the capital outlay for procuring and installing the facilities, continuous input of resources, which include manpower, energy and materials for their operation and maintenance (O&M) and for management of the O&M processes, is required for delivering the services that the facilities provide. To this end, building owners have to make significant investment on O&M works and, in order to obtain satisfactory return on investment, it is imperative to ensure that the works are costeffective (Lai, Yik 2008; Lai et al 2008).
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