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           _    _     ______   _    _      _____  
    ___   | || | ||  /_____// | || | ||   / ___// 
   /   || | || | ||  `____ `  | || | ||   \___ \\ 
  | [] || | \\_/ ||  /___//   | \\_/ ||   /    // 
   \__ ||  \____//   `__ `     \____//   /____//  
    -|_||   `---`    /_//       `---`   `-----`   
     `-`             `-`

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Text this: OPTIMIZATION MODELS FOR RAIL TRANSIT RESILIENCE