The document discusses driverless metro systems, including the first implementation in London in 1967 and fully driverless systems in 2003 in Singapore. It notes the growth of traffic congestion and need for more efficient public transit. Driverless metros require less energy, cause less pollution, and free up road space. Delhi's metro will be the first driverless system in India, running on certain lines by the end of 2016 using Unattended Train Operation (UTO) mode. While driverless metros improve reliability, safety, and reduce congestion, their implementation in India has faced high costs and underutilization of capacity.