The Amalgamated Transit Union Is The Largest Labor Organization Representing Transit Workers In The United States And Canada. Founded In 1892, The Atu Today Is Comprised Of Over 190,000 Members In 264 Local Unions Spread Across 44 States And Nine Provinces. Composed Of Bus Drivers, Light Rail Operators, Maintenance And Clerical Personnel And Other Transit And Municipal Employees, The Atu Works To Promote Transit Issues And Fights For The Interests Of Its Hard-working Member