Describir: Traffic and transportation plan for the Calcutta Metropolitan district :

  ______   _    _     _  _     _____      _____   _    _    _    _    _    _   
 /_   _// | || | ||  | \| ||  |  ___||   / ___// | || | || | \  / || | || | || 
   | ||   | || | ||  |  ' ||  | ||__     \___ \\ | || | || |  \/  || | || | || 
  _| ||   | \\_/ ||  | .  ||  | ||__     /    // | \\_/ || | .  . || | \\_/ || 
 /__//     \____//   |_|\_||  |_____||  /____//   \____//  |_|\/|_||  \____//  
 `--`       `---`    `-` -`   `-----`  `-----`     `---`   `-`  `-`    `---`