Mobile Phones to Monitor Traffic Congestion
shas3n writes "In an interesting and innovative way Bangalore city, India, has come up with a way to monitor road traffic congestion by monitoring the density of mobile phones. This can give users quantitative and directional information of traffic flow without significant additional infrastructure investments. The congestion data is already available online."
Just use your nose. The stench of curry and body odor will just get stronger as you get near congested crowds.
It's true, you don't need technology, just your olfactory senses.