Hi Matt!
I'm sorry to hear you haven't had much success at the interviews in the past
I think with 10 years you should definitely get consideration for that amount of experience, I must admit I haven't had any experience so I might be asking you operational questions in the future!
The interview I found challenging but quite informal at the same time, it takes about half an hour and is held with the local manager and someone else of similar seniority.
The questions are based on what you have answered in the online application already, alot of it is asking you to give examples of when you have worked as part of a sucessful team, worked to deadlines, worked following rules.
You also get asked to name some of the hazards around the station environment and also about a time you had a difficult situation with another member of staff and how you resolved it (I think the key is not to sound too negative, tell them what skills you'd use to resolve things!)