Posted in Web Halifax Transit’s reliability numbers are up. Here’s why … April 7, 2020 Halifax Transit tracks the reliability of its bus fleet using a metric called Mean Distance Between Failures (MDBF). https://www.thestar.com/halifax/2018/10/25/halifax-transits-reliability-numbers-are-up-heres-why-that-doesnt-mean-buses-are-more-reliable.html