Which TWY parallels TWY 4R 22L?

The correct answer is TWY Y, which parallels TWY 4R 22L at O'Hare Airport. Understanding the taxiway layout is crucial for ensuring efficient aircraft movement and ground operations. TWY 4R 22L is a runway that primarily serves arrivals and departures, and the taxiway network around it is organized to facilitate safe and orderly ground traffic.

TWY Y runs alongside this runway, allowing aircraft to maneuver without interfering with the operational runway. This layout helps manage the flow of incoming and outgoing flights, reducing the risk of congestion and potential conflicts between taxiing aircraft and those taking off or landing.

The other options, TWY C, TWY W, and TWY Z, are positioned differently and do not run parallel to TWY 4R 22L. Each taxiway serves a distinct purpose within the airport's overall ground transportation system, but only TWY Y has the correct alignment that parallels the specified runway. This understanding of taxiway relationships is essential for pilots, air traffic controllers, and ground operations personnel who navigate the complex environment of an international airport like O'Hare.