Ventilation, thermal and luminous autonomy metrics for an integrated design process

Won Hee Ko, Stefano Schiavon, Gail Brager, Brendon Levitt

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


This paper proposes and evaluates an integrated workflow that simultaneously uses ventilation, thermal, and luminous autonomy for the assessment of passive design strategies, introducing a potential way to integrate these three metrics in the design process. We developed a new metric, ventilation autonomy, and assessed the advantages and limitations of applying the three autonomy metrics with building performance simulations in two climates. We developed a novel visualization to display the hourly and yearly environmental autonomy values. The results show that when we consider the three metrics together, designers may have contradicting design directions if trying to both mitigate the solar radiation and to utilize natural ventilation. The visualizations that categorize nine combinations of thermal and visual comfort along with ventilation autonomy are effective in showing the trade-offs among ventilation, thermal, and visual performance.

Original languageEnglish (US)
Pages (from-to)153-165
Number of pages13
JournalBuilding and Environment
StatePublished - Nov 2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Building and Construction


  • Environmental autonomy
  • Integrated design
  • Resilience
  • Thermal comfort
  • Ventilation autonomy
  • Visual comfort


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