Home/Media/Infographics/American Shipper Infographics/Daily Infographic: Positive Train Control American Shipper InfographicsFreightWaves InfographicsInfographics Daily Infographic: Positive Train Control Positive train control (PTC) is a way to automatically stop a freight or passenger train before a collision. Emily Ricks · Wednesday, March 31, 2021 Facebook Twitter/X LinkedIn To read the full article, click here.