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 rail car from completing its trip, or starting its next scheduled trip.

Performance (October 2017):

In October, met the Target; the actual being 23,196 rail car miles - a decrease of 4,494 miles compared to that in September. Failures related to door and friction brake systems continue to be the most frequent.

Actions:

  1. Target poor performing systems for improvement
  2. Reduce repeat failures
  3. Improve incident management in service to reduce offloads