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 revenue vehicle from completing its trip, or starting its next scheduled trip.

Performance (September 2016 and Fiscal year-to-date):

In September, did not meet the Target; the actual being 19,615 rail car miles. 25% of all failures were friction brake related. 

Corrective Actions:

  1. Update Troubleshooting Guide and equipment data to improve root cause diagnostics
  2. Continue upgrading door system software
  3. Continue conducting ATC system circuit board reliability improvement process