Traffic Maps
Having the ³ÉÈË¿ìÊÖ traffic information displayed on a interactive map really gives you a great feel for what's going on around the country. I think it would be especially useful if you were planning a long trip.
As a test, I hacked together a simple page which injects live traffic data supplied from the ³ÉÈË¿ìÊÖ into Google Maps.
Obviously this prototype is lacking many features, but it's a start.
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