A Systematic Review of Factors Influencing Signage Salience in Indoor Environments

Wayfinding signage is an intermediary public facility that coordinates the relationship between space and people, and it is crucial to help people find their way in complex indoor environments. In people's cognitive behaviour towards wayfinding signs, the visual salience of the signs is the prerequisite and key to ensuring their effective operation. This paper aims to review published research articles on the effect of indoor environments on the saliency of wayfinding signs. The literature review was conducted by PICO methodology to formulate the research question and develop search strategies. Relevant research articles were identified by systematically searching electronic databases, including Web of Science, ScienceDirect, ProQuest, and EBSCO. This paper summarises two categories of factors influencing signage salience: (1) floor plan factors and (2) environmental factors. This study examined and condensed the attributes of wayfinding signage and their impact on how pedestrians perceive visuals while navigating. Exploring the elements that influence the visual prominence of indoor signs enhances our comprehension of how pedestrians engage with visually guided information indoors. Furthermore, this offers a theoretical foundation for the realm of indoor wayfinding.