Carte. SIG. Geo. Longitude. ///////////// UN SITE BLANC ///////////// Wikimapia - Let's describe the whole world! SpatialKey Data Visualization and Mapping - Home. TakItWithMe - TakItWithMe - Google MyMaps Converter. All streets. All of the streets in the lower 48 United States: an image of 26 million individual road segments. No other features (such as outlines or geographic features) have been added to this image, however they emerge as roads avoid mountains, and sparse areas convey low population. This began as an example I created for a student in the fall of 2006, and I just recently got a chance to document it properly. Alaska and Hawaii were initially left out for simplicity's sake, but I felt guilty because of the sad emails received from zipdecode visitors.
Unfortunately, the two states don't "work" because there aren't enough roads to outline their shape, so I left them out permanently. More technical details can be found here and additional updates here. San Francisco A detail of the West shows the relative lack of roads in mountainous areas, punctuated by the densely populated Bay Area. Kansas City The Great Lakes Appalachian Mountains.
Knowledge Mapping - Christophe Tricot - Bienvenue sur le portail. The Gapminder World 2006, beta.