Abstract
This research hypothesizes that architecture and city legibility is an element that can increase consistency between the user's mental map and an actual map. This research focuses on the topological aspects of five city elements that form the mental map - as introduced in “The image of the city” - and attempts to establish a correlation with visual variations identified through tests of subject search behavior in architecture and cities using eye mark recorder. The result of this research will be to propose indexing and measurement methods for architecture and city legibility by quantifying complicated visual behavior through mental maps.