Metro eyes 3-minute gap by 2030, 90-second headway later with massive Blue Line revamp

Calcutta: Metro Railway has lined up a series of infrastructure upgrades to improve the frequency of trains on the Blue Line, the oldest Metro link now plagued by snags and delays.

Now, the Blue Line has a peak-hour frequency of five minutes. “We aim to bring it down to three minutes first and eventually attain a headway of 90 seconds,” said a senior official. The three-minute gap is expected to be achieved by 2030, he said.