I everyone thinks they are a transportation 'expert'. I mean, how many times have people come up to you at a party and, once you tell them you are a transport planner, say something like, "Why don't they add another lane to Highway 66? That would solve the congestion problem."
Usually at this point I excuse myself to get another glass of wine rather than getting into a discussion about the ins and outs of simply 'adding a lane' or 'running more trains' (yes, transport experts are multimodal!).
Anyway, I just read about two free transport planning simulation games that are available on line. I can't vouch for these games, but they sound interesting. Maybe next time a transport expert starts giving me suggestions for solving transport problems I will refer him (or her) to the site!