Bengaluru, July 7 -- Bengaluru's social media fraternity is debating two massive infrastructure projects amid continuing traffic congestions: the proposed underground tunnel network for private vehicles and the expanding Namma Metro system aimed at mass transit.

The tunnel road project - estimated to cost Rs.19,000 crore - envisions an underground network between Hebbal and Silk Board, intended to ease surface traffic by creating a high-speed corridor exclusively for private vehicles, mostly cars. In contrast, the Namma Metro, along with the long-anticipated suburban rail project, is being pitched by many urban planners and citizens as a more inclusive, sustainable solution to the city's transportation crisis.

Social media took the whee...