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 (March 2019):

In March, met the Target; the actual being 26,683 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. Reduce offloads by improving incident management in service
  4. Overhaul the fleet