LA area = http://traffic.tann.net
Via Epia M10000 / 512 DDR / 10gigs 3.5 HD / M1-ATX / Innovatek 7" TS Screen
Trunk fiberglassing in progress...
Need GPS / Aux Input / WiFi
My Corolla Computer
I've been looking for a good traffic site for the UK for a while. Couldn't find one but here's a good one for England.
Project Status: 90% Complete
Next Step: TIVO for Radio
Ampie Case :: MII10000 Mobo :: M1-ATX PSU :: 512MB RAM :: 2.5" HD, 60GB, 5400rpm, 16MB Buffer :: DWW-700H :: Centrafuse
I just stumbled upon Beat the Traffic which apparently serves Anaheim, Anchorage, Atlanta, Chicago, Fresno, Gary, Los Angeles, Macon, Milwaukee, Minneapolis-St Paul, Modesto, Oakland, Phoenix. Sacramento, San Bernardino, San Diego, San Francisco, San Jose, and Seattle.
They have a 7 day traffic forecast even.
New Scientist news blurb