Quantifying urban environments: Aesthetic preference through the lens of prospect-refuge theory

Abstract

Prospect-refuge theory suggests that people prefer environments that offer both prospect, the ability to scan for resources, and refuge, a safe place to hide. Urban planners, architects and researchers alike have had a tendency to use prospect-refuge theory research on natural scenes to inform on the design of urban environments. Despite the large body of prospect-refuge theory research, the degree to which prospect and refuge impact preference in urban environments remain unclear. Here, we aim to first evaluate the relationship between prospect, refuge and preference for urban scene images. Secondly, we aim to evaluate the contributions of visual features and streetscape quality ratings to subjective ratings of prospect and refuge in order to create proxy values of prospect and refuge. Finally, we aim to understand how the proxy values impact preference for urban scenes, and if the proxy values created replicate the relationship between subjective measures of prospect, refuge and preference. First, we used participant ratings of prospect and refuge to predict participants' preference for 552 images of urban street scenes. Higher ratings of both prospect and refuge predicted greater image preference. We next used principal components analysis to summarize these images' low- and high-level visual features as well as participant ratings of streetscape qualities, such as walkability and disorder. Visual feature and streetscape quality principal components predicted prospect and refuge ratings in this first image set, providing “proxy measures' for prospect and refuge. In an independent set of 1119 images from Talen et al. (2022) for which prospect and refuge ratings were not available, we asked whether these proxies for prospect and refuge predicted preference. Findings replicated the effect that more refuge in an image predicts more preference. However, the proxy measure of prospect did not predict preference. In summary, our results show that refuge ratings do relate to preferences in urban environments, which extends prospect-refuge theory to more urban environments. Future work is needed to understand if prospect has different implications in more urban environments.