Question:
The bioclimatic chart:
The bioclimatic chart:
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The Bioclimatic Chart maps human thermal comfort by pairing Temperature and Relative Humidity. It shows you exactly when a site is comfortable, and prescribes passive remedies (like thermal mass or evaporative cooling) when it is not.
Updated On: Jun 23, 2026
- Only shows the relation between rainfall and temperature
- Is used to predict extreme weather events
- Is irrelevant for building design considerations
- Indicates comfort zone and can also be used to indicate corrective measures
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The Correct Option is D
Solution and Explanation
Concept:
Developed by Victor Olgyay, the Bioclimatic Chart serves as a core analytical tool in climate-responsive architecture. By plotting ambient dry-bulb temperature along the vertical axis against relative humidity along the horizontal axis, the chart links local meteorological data directly with human thermal sensations.
Step-by-step Explanation:
• Defining the Comfort Core: At the center of the bioclimatic chart sits a bounded parameter known as the human thermal comfort zone. When a region's temperature and humidity coordinates fall within this zone, a person can shed metabolic heat naturally without needing mechanical heating or cooling.
• Prescribing Corrective Actions: When local weather coordinates fall outside this baseline zone, the chart outlines extended boundaries that match specific passive engineering strategies. For instance, if conditions are hot and dry, the chart indicates whether increasing wind velocity (cross-ventilation) or introducing moisture (evaporative cooling) can shift the perceived indoor conditions back into the human comfort zone.
• Evaluating Options: This practical design application directly disproves options (A), (B), and (C), confirming that option (D) is the correct answer.
• Defining the Comfort Core: At the center of the bioclimatic chart sits a bounded parameter known as the human thermal comfort zone. When a region's temperature and humidity coordinates fall within this zone, a person can shed metabolic heat naturally without needing mechanical heating or cooling.
• Prescribing Corrective Actions: When local weather coordinates fall outside this baseline zone, the chart outlines extended boundaries that match specific passive engineering strategies. For instance, if conditions are hot and dry, the chart indicates whether increasing wind velocity (cross-ventilation) or introducing moisture (evaporative cooling) can shift the perceived indoor conditions back into the human comfort zone.
• Evaluating Options: This practical design application directly disproves options (A), (B), and (C), confirming that option (D) is the correct answer.
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