About
MARTA

Key Performance Indicators

Rail Mean Distance Between Failures

Definition: An industry standard that measures the mechanical reliability of the fleet. It measures the average rail car miles between National Transit Database (NTD) reportable mechanical failures i.e., incidents precluding a revenue vehicle from completing its trip, or starting its next scheduled trip.

Performance (November 2016):

In November, met the Target; the actual being 32,350 rail car miles - mostly due to the reduction in the number of failures related to Door and Friction Brake systems. Programs addressing issues with these systems and updated troubleshooting procedures for rail operators significantly contributed to the performance improvement.