gFlowiz, an open science framework to analyze and geovisualize networks and flow datasets

International audience; Geographic flow visualization (gFlowiz) is an interdisciplinary project dedicated to flows and networks in the geoweb.It is led by a team of French researchers and engineers in Geography, Cartography and Computer Science from both IFSTTAR and CNRS.gFlowiz follows the new paradigm of « visualization mapping » (MacEachren, 2004) not present in current geoweb applications.All types of flows, movements and traffic in a geographical space, at several scales, are involved (migrations, freight, transportation, etc).Required semiological, aesthetical and design elements offered by currently web-based graphic visualization libraries are also considered.Its main goal is to build a simple application combining two pillars of scientific graphical representation: flow data processing and (geo)graphical modalities visualization. A state of the art on current issues of flows and movement analysis on the geoweb has been produced through the compilation of around 70 applications in a thematic dashboard, and a 200 respondants survey on flow map usages and needs has been realized. This presentation will follow 3 axes: open source applications in the curated corpus, an analysis of the survey and a current development status of the application.