# The Effects of Ambient Illumination, Color Combination, Sign Height, and Observation Angle on the Legibility of Wayfinding Signs in Metro Stations

> Research article (Sustainability, 2020) · cited 38× · AI/ML

**Wikidata**: [openalex:W3024072452](https://www.wikidata.org/wiki/openalex:W3024072452)  
**Source**: https://4ort.xyz/entity/the-effects-of-ambient-illumination-color-combination-sign-height-and-observation-angle-on-the-legibility-of-wayfinding-