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What is a ‘Phantom Traffic Jam’?

What is a ‘Phantom Traffic Jam’?

Image via Wikipedia   We’ve all been stuck in that traffic jam (or back up) where a long line of vehicles has ground to a halt and there appears to be no obvious reason why. Well, there have been a couple of studies lately into what exactly what causes these...

Pittsburgh, Twitter Listed

Twitter lists went public (beta) today, thus I spent a good part of my afternoon creating a Pittsburgh, Active Twitter users list. Sadly, Twitter has a 500 person count cap on the lists so I had to go back and forth adding and removing a few people. Follow my Active...