Evolution Series ndi mzere wama locomotives a dizilo omangidwa ndi GE Transportation Systems (omwe tsopano ndi a Wabtec), omwe poyamba adapangidwa kuti akwaniritse miyezo ya U.S. EPA's Tier 2 emissions emissions yomwe idayamba kugwira ntchito mu 2005. Mzerewu ndi wolowa m'malo wachindunji wa GE Dash 9. Mndandanda. Magawo oyamba opangirako adamangidwa mu 2003. Ma locomotives a Evolution Series ali ndi ma AC kapena DC traction motors, kutengera zomwe kasitomala amakonda. Zonse zimayendetsedwa ndi injini ya GE GEVO.[4]

The Evolution Series idatchulidwa ngati imodzi mwa "Magalimoto 10 Omwe Anasintha Sitima" ndi Trains Magazine ndipo inali njira yokhayo yamayendedwe omwe adayambitsidwa pambuyo pa 1972 kuphatikizidwa pamndandandawo.[5]

Ma locomotives a Evolution Series ndi ena mwa ma locomotives ogulitsa kwambiri komanso opambana kwambiri m'mbiri ya United States.

Ma locomotives awa ali ndi nyanga za Nathan Airchime K5HL, zosinthidwa 2, kupanga K5HLR2. Nyangazo zimayikidwa chammbuyo ndi 2 belu loyang'ana kutsogolo ndi mabelu 4 akuyang'ana kumbuyo. Ma locomotives onse amagwiritsa ntchito nyangazi, kupatulapo ET23DCM ndi ma locomotives apadziko lonse lapansi.