The Anaheim Transportation Network, which serves millions of riders each year in the resort area, will stop operating after March 31, officials said Wednesday, Jan. 29. ATN moves more than 8 million riders a year, mostly through its ART bus system that serves the resort area. City leaders have said the public transportation service is critical for area tourists and employees. “For nearly three decades, the Anaheim Transportation Network has supported mobility in the Anaheim Resort — serving residents, employees and millions of visitors,” a statement Wednesday from the ATN Board of Directors said. “After an extended evaluation of our current and future financial position and exhausting all options, ATN will begin an orderly wind-down of operations.