About
MARTA

Key Performance Indicators

Rail Mean Distance Between Failures

Definition: Measures the mean distance (rail car miles) between mechanical failures reportable to National Transit Database, i.e., those precluding a rail car from completing its trip or starting its next scheduled trip.

Performance (April 2019):

In April, met the Target; the actual being 26,834 rail car miles. ATC, doors and friction brakes continue to be the most frequently malfunctioning systems.

Actions:

  1. Target poorly performing systems for improvement
  2. Reduce repeat failures
  3. Improve incident management in service to reduce offloads
  4. Overhaul aging fleet