To see these heat maps in action, try these demos:
- Baltimore and DC Traffic and Vehicle Statistics
- San Francisco vs New York City
- US traffic congestion for any two locations
GWT Simile Timeline in a Google Maps mashup - Alistair Rutherford's UK GTraffic.info mashup now integrates with the GWT Simile Timeline. Alistair explains it for us: "..This displays traffic events for a region in temporal relation to each other. Selecting a timeline will display an info bubble and clicking on the severity icon from the bubble will flip the display to the corresponding marker on the map. This allows you to browse the incidents for a region by time as well as by geographical location." To see it working, drill into a location and click the "timeline" tab.. You explore the timeline just like you do with Google Maps using an AJAX grab and pull interface. The Mapperz Blog calls it "a Google Maps first!" I'll have to agree.. (Check out my recent post about GTraffic here..)
Cool Google Maps key interface - StrataVarious has created a cool user interface to browse Google Maps mashups. Their HyperMapAtlas system applies layering technology to turn Google Maps into a deep, interactive and smooth usability experience with all-in-one-page access to large geographic data sets. To take a look at how it works, click the above link which takes you to Seattle or here to view a US Minerals Map that gives a nice demo. Click onto items in the key and also take a look at the bottom of the map to see additional ways of selecting different views. Pretty nice stuff!
Related: Washington Post Article (Nov.27/06):
Start-Ups Try to Plot A Complete Picture
For more Google Maps mashup tools and resources, take a look here..