Measuring urban clarity of the built environment

since a very short time, how to measure urban spaces was an undefined issue in the scientific debate. Most of them have relied on theories that their results often selective; they based on complex variables that are rarely available simultaneously in the built environment and the human element. This paper aims to explain the "intelligibility" indicator of Urban Spaces, Built Environment and the relationship between Global Integration measurement and Connectivity measurement of spaces through the Axial Line Analysis from the point of view of Space Syntax theory. This indicator helps to understand the surrounding Built Environment, which is critical to urban navigation and helps to understand the urban spatial restructuring of the Built Environment and facilitate its understanding of the observatory.