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

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