Identifying supportive daytime lighting characteristics for enhancing individuals’ psychophysiological wellbeing in windowless workplace in tropical Malaysia

Abstract

Inappropriate architectural lighting exposures in workplaces are causing light-induced health and performance-related problems among healthy, urban individuals. This paper presents part one of an integrated tropical architectural lighting design framework for improving dayshift individuals’ psychophysiological wellbeing in windowless workplace in Malaysia. The paper discusses five architectural lighting factors, namely intensity, spectrum, timing, duration, spatial distribution. The daytime lighting characteristics that influence individuals’ psychophysiological wellbeing indicators (IPWI) were analysed. Findings indicated a dearth of literature in the lighting characteristics to support IPWI in the tropics, as evidence was predominantly from seasonal climate contexts. This motivated a critical discussion on the lighting factors and recommendations of alternative design consideration for a tropical Asian context. Potential daytime architectural lighting characteristics likely to support dayshift IPWI in windowless workplace in tropical Malaysia were also recommended for further investigations. These recommendations in the framework are expected to facilitate healthier windowless workplace design in Malaysia.

Simulations of non-image-forming effects of light in building design: A literature review

“…Since the terminology around this topic varies and in order to avoid missing papers due to incomplete keywords, all eligible publications were forward-traced (by identifying the articles that cite them after they have been published). In addition, four relevant review papers found through the initial search that investigated the connection between architecture and NIF effects of light 8,[30][31][32] were forward-and backward-traced (by searching their references). Eventually, 55 papers were included in the literature review (Figure 2).…”

Conditions for Implementing Windowless Offices in High-Density Urban Centers of Malaysia: A Bibliometric and Systematic Review

“…Circadian System Entrainment, Fiber Optics Daylighting System, and virtual reality, among other scientific monitoring procedures, theoretical calculations, and computational simulations (Chen, Zhang, & Du, 2020;Sithravel & Ibrahim, 2021).…”

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“…According to reports, the indoor light environment affects our vision, physiology, psychology and behaviour. [2][3][4][5][6] However, for a long time, researchers have generally focused on the influence of physical parameters of light on subjective impressions. There is a lack of an effective objective method to characterize subjective evaluations.…”