Subway Closed 1,100 Units Last Year As It Struggled With Saturation, Average Unit Volumes

While the two largest U.S. chains in terms of systemwide sales continue to face traffic challenges, Subway—the largest chain by far in terms of units and third in system sales—has been rocked by a host of problems since its unit count peaked in 2015. The chain and its franchisees closed 1,100 U.S. units last year…