A number of job descriptions (US-based, if it matters) list things like "Approximately 10% travel" among the activities involved in the job, but just how much travel is that?
My initial guess would be that 10% of all business days would involve travel, which would work out to once every two weeks, which makes me want to run away screaming. On the other hand, if the day of departure and day of return are counted as separate travel instances, one trip would consist of two travel days, meaning there would be one trip every 20 business days, or about once a month. On the third hand, if days spent away between departure & return are counted as travel time as well — rather than "travel" just referring to the actual travelling — then one trip would consist of (pulling numbers out of the air here) about four business days, so once every two months or so.
I could probably keep going like this without getting anywhere, so I turn to you good people: Just what can I expect from "10% travel"?