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 (February 2019):

In February, did not meet the Target; the actual being 18,692 rail car miles. ATC, doors and friction brake systems continue to fail most frequently.


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