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Pathways and mechanisms of health interventions in the waterfront-built environment of cold regions.

International journal of environmental health research·2025
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Development and testing of the nightscape affect index.

Ming Gao1,2, Xun Zhu1

  • 1School of Architecture and Design, Harbin Institute of Technology, Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology, Harbin, China.

Applied Psychology. Health and Well-Being
|May 9, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces the Nightscape Affect Index (NAI) to measure how urban nighttime environments impact human emotions. The validated NAI tool helps understand public affective responses to nightscapes and assess light pollution reduction strategies.

Keywords:
affectenvironmental perceptionlight pollutionnighttimeurban nightscapes

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Area of Science:

  • Environmental Psychology
  • Urban Planning
  • Psychometrics

Background:

  • Growing evidence links urban environments to human affect.
  • Limited understanding exists on specific urban landscape features influencing positive affect.
  • Urban nightscapes and their psychological impact remain underexplored.

Purpose of the Study:

  • To investigate the affective connections between nighttime environments and individuals.
  • To develop and validate a psychometric tool for assessing nightscape-related affect.
  • To provide a tool for research and practice in urban nightscape studies.

Main Methods:

  • Designed, developed, and validated the Nightscape Affect Index (NAI).
  • Systematically assessed psychometric properties: reliability, factor structure, retest validation.
  • Utilized three subscales: nightscape attraction, adaptation, and attachment.

Main Results:

  • The NAI demonstrated strong internal consistency and excellent reliability.
  • The scale provided robust evidence for convergent, discriminant, and structural validity.
  • The NAI is a psychometrically sound tool for measuring nightscape affect.

Conclusions:

  • The NAI can enhance understanding of urban nightscape-affect relationships.
  • It offers potential for evaluating interventions aimed at reducing light pollution.
  • The NAI supports research and practical applications in urban environmental psychology.