* Congrats Delhi Metro-Magenta Line - A train every second should be the highest frequency on any single corridor in India!!! This single corridor is as good as two parallel corridors with spacing of a metro every 200 seconds or about 3 minute which is common in normal metro!
* Benefits of Automation and advanced signalling Signalling- It can double the capacity by close spacing between trains at small cost as compared to huge cost of constructing one more corridor with 3-4 minutes of spacing between trains.
* IR need to embark upon...
more... large scale modernisation & automation throughout its network so that capacity augmentation can be done at much lesser cost & in much lesser time. But it will increase the importance of signalling dept at the cost of the powerful Engg deptt who may not like it.