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Traffic Congestion Heat Maps

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16 Nov 2006

wuzziwug says:

Beautiful. I'll be using this API, stat. Using a transparent image overlay instead of divs really helps avoid overloading the browser, but it'd be nice if they'd load faster.

16 Nov 2006

andry1 says:

We look forward to seeing what you come up with!

Re: load times/image overlays/etc -- We hear you. I won't get into the nitty-gritty, but the backend engine is actually doing a lot of geoprocessing for each request (those images are all generated based on the latest data when requested -- no canned raster imagery), but we're constantly working to improve it, and subsequent releases should see substantial speed improvements and optimization.

However, a quick tip: If you're looking at it in IE v5.5 to anything less than 7, our overlays are transparent PNGs which requires loading a special hack through IE. We've noticed in our internal testing that this tends to make the images load a little slower in IE.


05 Mar 2008

Bill P says:

Broken link.

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