The Government Accountability Office will launch an investigation into precision scheduled railroading, a business philosophy embraced by North American freight rail companies that a Motherboard investigation revealed has radically slashed safety measures in the name of profit.

The study was requested in May by the chairs of the House Committee on Transportation and Infrastructure Peter DeFazio and the Subcommittee on Railroads, Pipelines, and Hazardous Materials Donald M. Payne, Jr. 

"In recent years, numerous stakeholders have raised concerns about the railroad management strategy known as precision scheduled railroading (PSR)," the letter requesting the study stated. "Stakeholders are concerned that the rise of the PSR model has come at the expense of long-term capital investments, reduced rail infrastructure, affected service for some shippers, and caused dramatic workforce cuts and safety concerns."

Read more: Vice