CloudMade Tile Request Heat Map

Posted by & filed under GIS.

I love heat maps, and I think OpenStreetMap.org is an amazing idea.  This is a heat map of the tile usage.  It’s cool to see bright spots in South America and Africa.  I’m curious as to why there isn’t a bright spot near Perth, and I guess I’ll need to sign in to get info… Read more »

Mapping the Earth’s Gravity

Posted by & filed under GIS, Technology.

Some places on earth have different gravities.  Gravity roughly decreases with altitude, and many things can affect it.  The linked article explains that the European Space Agency are trying to get a better image of the earth’s gravitational pull.  There is also some talk about how this study can help us understand climate models better…. Read more »

RiskyRoads.org Maps Fatal Accident Hot Spots

Posted by & filed under America, GIS.

RiskyRoads.org is providing maps of Fatal Accidents and DUIs.  A lot of useful information! I’ve been looking up clusters in my area.  It seems that Union Blvd in East Allentown is pretty dangerous.  It is a four lane road roadway with a lot of businesses and intersections.. really it seems like a pretty deadly scenario…. Read more »