The Fudge Factor refers to known unknowns, or things that you know exist but can’t quite quantify. For example, you may leave work Monday between 5:00 and 5:30 p.m. because you know the longer you wait, the more traffic will build up. You know traffic exists but you’re not sure how much, so you build in a Fudge Factor of time that’s high enough to compensate for what you believe will be a worthy delay.
