Since I am a technologist and not a town planner or a govt. authority I want to propose a solution from technological perspective. And also I just want to start small by say using web cams to alert/predict future traffic jams and just alert authorities via social media?

Then next step would be to feed this systems output to traffic signals and dynamically increase/decrease their timings? I have a lot of radical ideas and if you have one I would be glad to hear it out.

Again keeping in mind that traffic jam eradication vs aversion are a different problems. Traffic jam eradication/prevention requires a lot of experts from different domain to work in collaboration (town planner + civil engineers + road engineers + gov. authoritarians etc).

While I think(may be wrong) traffic aversion can be done using technology + some domain knowledge.