Overlaps in space utilisation patterns and IEQ conditions observed in Activity-Based Working supportive office

Publication Type:
Journal Article
Building and Environment, 2022, 220, pp. 109273-109273
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One of the potential positive aspects of spaces designed to support Activity-Based Working (ABW) concept is to allow people to choose to work from zones that suit their Indoor Environmental Quality (IEQ) preferences. The vast majority of studies reporting findings relevant to IEQ performance of ABW spaces rely on spot measurements and/or subjective surveys and as such it is difficult to map longitudinal actual utilisation patterns and IEQ performance. This study contributes to this topic by analyzing a longitudinal dataset of space utilisation of an ABW over a twelve-month period. Analysis aims to identify overlaps between space utilisation patterns and expected IEQ performance in order to understand which types of zones occupants seem to prefer to work from. Occupants’ demographics (age and gender) were also analyzed with respect to the use of space. Further, specific physical markers were investigated, namely proximity to window, air-conditioning outlets, and high-low noise locations. The impact of physical markers on workplace choice was classified and predicted during a day using a decision-tree diagram developed on the basis of the CHAID algorithm. Overall, workers tended to choose to work within the inner zones (after 11 a.m.) during winter. Findings show that female workers moved away from air-conditioning outlets. Additionally, female workers worked from workstations situated in high and medium noise zones. Results illustrated the potential to use utilisation datasets to understand how workers move away or towards zones in response to expected IEQ performance - thermal comfort (cold/warm), acoustics (noisy/quiet), and access to the outdoor environment/view (window) proximity.
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