Study
Human FactorsNew This WeekStrong effect

Optimizing Outdoor Thermal Comfort: Microclimate Design for Pedestrian Well-being

Understanding how microenvironmental factors influence thermal perception is crucial for designing comfortable outdoor pedestrian spaces.

Scientific Reports · 2025

01

Key Findings

  • 01Thermal perception is strongly correlated with specific microenvironmental parameters, particularly the Physiological Equivalent Temperature (PET).
  • 02The Thermal Sensation Vote (TSV) showed the weakest correlation with microenvironmental parameters within neutral temperature ranges, suggesting other factors may be more influential in these conditions.
02

Application

Design takeaway

When designing outdoor spaces, actively measure and consider microclimatic data to ensure user thermal comfort, especially focusing on metrics like PET.

How to apply

Before finalizing designs for public spaces, parks, or outdoor seating areas, conduct an analysis of potential microclimatic conditions and their impact on user comfort.

Project actions

  • 01When researching user comfort, consider how environmental factors like temperature and wind can be measured and correlated with user feedback.
  • 02Think about how to present complex environmental data in a way that is easy for users to understand and relate to their own experiences.
03

Method & Evidence

AimHow do microenvironmental factors (e.g., air temperature, humidity, wind speed) affect people's thermal perceptions and comfort levels in outdoor campus settings under varying conditions?
MethodCorrelational study and subjective thermal sensation assessment
ProcedureResearchers measured various microenvironmental parameters and collected subjective feedback on thermal comfort from individuals in outdoor campus locations. Statistical analysis was used to determine the relationships between the physical environment and perceived thermal sensation.
ContextOutdoor pedestrian environments, specifically on a university campus.

Variables

IV["Microenvironmental factors (e.g., air temperature, humidity, wind speed, PET)"]
DV["People's outdoor thermal perceptions (e.g., Thermal Sensation Vote - TSV)"]
CV["Location (campus environment)","Time of day/season (implied by varying conditions)"]
04

Strengths & Limitations

Strengths

  • +Directly links objective environmental data with subjective user experience.
  • +Provides specific metrics (PET, TSV) for analysis.

Limitations

It can be difficult to control all environmental variables simultaneously for testing. Measuring subjective feelings can also be influenced by individual differences.

Reliability & validity

Reliability could be improved by using standardized measurement tools for environmental factors and consistent questioning for subjective feedback. Validity is supported by the correlation between objective environmental data and subjective user perception.

Think critically

How might the 'weakest correlation' in neutral temperature ranges indicate a need to explore other human factors, such as psychological expectations or physiological acclimatization, in addition to physical environmental parameters?

05

Design Principles

"Design outdoor environments to align with user thermal comfort expectations by actively managing microclimatic variables."

Designers and urban planners can leverage this knowledge to create more inviting and functional public areas. By considering factors like temperature, humidity, and air movement, they can mitigate discomfort and enhance the user experience in outdoor environments.

06

What This Means for Your Design

This research shows that the temperature, wind, and humidity outside really matter for how comfortable people feel. Designers need to pay attention to these things when creating outdoor spaces.

How to use in your project

  • 1.Use this research to justify the importance of considering environmental factors in your design project's user research phase.
  • 2.Cite this study when discussing the impact of microclimates on user experience and comfort.
07

Add to My Project

08

Quick Cite

(2025). Campus microenvironmental factors and their effects on people’s outdoor thermal perceptions under different conditions. Scientific Reports. https://doi.org/10.1038/s41598-025-96651-x Retrieved from https://designdex.org/study/57ffd339-af4b-4e75-aece-cb3683313e9a/optimizing-outdoor-thermal-comfort-microclimate-design-for-pedestrian-well-being

Paragraph starter

This study highlights the critical role of microenvironmental factors in shaping user thermal perception and comfort in outdoor settings. By correlating objective measurements of parameters like PET with subjective thermal sensation votes, the research provides valuable insights for designers aiming to optimize pedestrian well-being. The findings suggest that a nuanced approach is needed, particularly in neutral temperature zones where simple environmental metrics may not fully capture user experience, underscoring the need for comprehensive environmental design strategies.

09

Source

Scientific Reports

Campus microenvironmental factors and their effects on people’s outdoor thermal perceptions under different conditions

journal · 2025

View source

Questions about this research

What does the research say about optimizing outdoor thermal comfort: microclimate design for pedestrian well-being?
When designing outdoor spaces, actively measure and consider microclimatic data to ensure user thermal comfort, especially focusing on metrics like PET. Evidence: Scientific Reports (2025).
Why does "Optimizing Outdoor Thermal Comfort: Microclimate Design for Pedestrian Well-being" matter for design?
Designers and urban planners can leverage this knowledge to create more inviting and functional public areas. By considering factors like temperature, humidity, and air movement, they can mitigate discomfort and enhance the user experience in outdoor environments.
How can designers apply this research?
When designing outdoor spaces, actively measure and consider microclimatic data to ensure user thermal comfort, especially focusing on metrics like PET.
What were the main findings?
Thermal perception is strongly correlated with specific microenvironmental parameters, particularly the Physiological Equivalent Temperature (PET).. The Thermal Sensation Vote (TSV) showed the weakest correlation with microenvironmental parameters within neutral temperature ranges, suggesting other factors may be more influential in these conditions.
What research method was used?
Correlational study and subjective thermal sensation assessment.
How strong is the evidence?
Evidence strength is rated Strong effect, based on a 2025 journal from Scientific Reports.
What should I do differently in my next project?
Before finalizing designs for public spaces, parks, or outdoor seating areas, conduct an analysis of potential microclimatic conditions and their impact on user comfort.
What are the limitations?
The study was conducted in a specific campus environment, and findings may vary in different geographical locations or urban settings. The influence of personal factors (e.g., clothing, activity level) on thermal perception was not fully detailed.
Is there evidence that outdoor thermal affects design outcomes?
The study found that temperature and other environmental factors significantly impact how people feel outdoors, with some environmental metrics being better indicators of comfort than others, especially in moderate temperatures. Designers and urban planners can leverage this knowledge to create more inviting and functi Source: Scientific Reports (2025).
Where does this thermal comfort research apply?
Outdoor pedestrian environments, specifically on a university campus. It sits within human factors research on designdex.org.

Related research topics

outdoor thermal design research · evidence on outdoor thermal · does outdoor thermal improve design outcomes · thermal comfort studies for designers · outdoor thermal and thermal comfort findings · human factors research evidence