Mean Distance Between Failures - Staten Island Railway  - NYCT - Subways 
WebFOCUS Report
YTD Target: 80,000 YTD Actual: 59,871 Change From Target: -25.16%
Frequency: Monthly Desired Change: Increase
Average number of miles a subway car travels in service before a mechanical failure that makes the train arrive at its final destination later than 5 minutes.