NEW YORK (AP) — Ka’Von Wooden loved trains. The 15-year-old had an encyclopedic knowledge of New York City’s subway system and dreamed of becoming a train operator. Instead, on a December morning in ...

Late last year, the wheels of the R160 cars operating on the E, F and R lines were wearing out in a matter of weeks. That led to a shuffling of train cars on the subway system’s lettered ...