ACSES fully operational on the NEC

Amtrak activated its final segment of ACSES (Advanced Civil Speed Enforcement System), its version of Positive Train Control (PTC), along the Northeast Corridor on Dec. 18, 2015. ACSES is now fully functional on all Amtrak-owned track between Washington, D.C., and Boston, almost two weeks before the Congressionally imposed original deadline of Dec. 31, which has since been extended by three years.