American Train Dispatchers Association
[1] The organization also represents the crafts that provide power to electrified trains, mostly on commuter lines.On short line railroads, the organization acts as more of an industrial union and also represents trainmen, enginemen, maintenance of way employees, mechanics and clerical staff.The Train Dispatchers hold collective bargaining agreements with the following companies:[2] The union was founded in 1917 at a convention in Spokane, Washington.An earlier organization called the Train Dispatchers Association of America preceded the establishment of the ATDA by 27 years.[3] During the Great Railroad Strike of 1922, the Train Dispatchers did not participate but neither would they perform work of other unions.