The http://plan-interactif.tcl.fr/ website provides the users of the transportation network with an interactive map and a route calculator and planning. The TCL website is one of the most visited in Lyon (over 50,000 visits a day). It was first developed with Google Maps, but our customer wanted a technology that was more professional, more ergonomic, easier to manage, and more integrated with their own Information System (Platform). Since the site is subject to high traffic peaks (in the morning and in the evening in particular), we immediately considered using a Cloud solution. Moreover, it was obvious that we had to recommend a platform solution in order to integrate it as well as possible with their Information System. This is why we migrated the solution from Google Maps to a full ArcGIS Online solution.