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 2022):
Mobility Mean Distance Between Failures in June was 6,451 miles, which did not meet the target of 15,000 miles. Note: Higher Mobility Mean Distance Between Failures is better.