 Central planners in Moscow first identified Omsk as a metro-eligible city during the 1960s, due to its length along the Irtysh River and its relatively narrow streets.But after the plan was approved and financed, the planners decided to build an express tram instead, and the money allocated to Omsk was given to Chelyabinsk.In 1979, a Gosplan commission rejected a plan to build an express tram system since it was predicted to be unable to handle projected passenger flows without severely discomforting riders.