The image of the roundabout you see above is an artist rendering of the Orange Avenue roundabout that intersects with Jim Lee Road.  The Region of Waterloo has an excellent example of the concept of roundabouts on their website.  You can click on the link below to access it.  This site gives rules for roundabout usage.  It is animated to show how pedestrians, bicyclists, motorists and big trucks should use the roundabout.  There is actual traffic footage to view and a video with a police officer explaining “All About Roundabouts.”  Once you click on the link below, you will leave the Leon County website with this information.  http://www.region.waterloo.on.ca/web/region.nsf/index?OpenPage