About
MARTA

Key Performance Indicators

Rail Mean Distance Between Failures

Definition: An industry reliability standard that measures the mean distance (rail car miles) between mechanical failures reportable to National Transit Database, i.e., those precluding a revenue vehicle from completing its trip or starting its next scheduled trip.

Performance (March 2018):

In March, met the Target; the actual being 23,027 rail car miles. Door and friction brake systems continue to be the least reliable.

Actions:

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