This paper describes an approach to the assessment of building circulation by using quantitative data and applying its weight. People have considered building circulation because of various requirements as well as design decision making. This is why assessment of building circulation plays an important role before construction stage. BIM (Building Information Modeling) and its applications enable us to examine various kinds of building design review tasks using rich building information. Within a scope of building circulation review, this paper is mainly dealing with qualitative issues. In fact, they have been ignored due to their implicit definitions such as 'comfortable circulation' in circulation requirements. We described how it could be expressed quantitatively in a certain approach. Quantitative data and its weight are key aspects to convert implicit descriptions into explicit regulations. As an example, there are several useful quantitative data derived from BIM model such as metric distance, spatial depth, number of turns, window area, spatial volume and so on. This paper aims to study an approach to quantification of circulation data for objective evaluation. We also suggested a framework using weighted data of circulation properties such as 1) vertical distance and horizontal distance 2) the number of spaces to pass 3) the number of turn 4) space of windows area, etc.