In this work, we sought to understand effects of circulations on the Parisian urban fabric between the 15th and the first third of the 19th century, and, in particular, we sought to understand how it is evolving according to the interactions that develop at different scales between the materiality of the city and potentialities of exchange. The mapping of several corpus of planimetric and written data allow us to build our own geohistoric data, while theirs integration in a GIS bas made comparisons of results possible. This way, we were able to highlight different process according to scale choice for forms study, and, every time, to emphasize the particular character of the evolution of materiality of the city nearby traffic flow areas : h...