About
MARTA

Key Performance Indicators

Mobility Mean Distance Between Failures

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

Performance (June 2023): 

The mobility mean distance between failures in June 2023 was 8526, which fell below the target of 15,000 miles or more.