In one of the most Bizarre games to ever come out on the DC, Tokyo Bus Guide places you in charge of the entire city's bussing system. Simulations are very popular in Japanese gaming and Tokyo Bus Guide fits that trend perfectly. You'll have to deal with routing problems, as well as personnel and monetary issues. Give this game a try if you've got an itch to be a Japanese Transportation guru.
About Tokyo Bus Guide
Just a comment on this since I don't have permission to edit the article. This is neither an official description, nor does it have anything much to do with the game in question. "Tokyo Bus Guide" is not a managerial simulation, you're not in charge of a transport network, routing, personnel, or money. What it is, is a bus driving simulation in which you drive your bus on one of three routes in and around Tokyo. You follow traffic rules, stop at stations in time, and make station announcements. Try to make the ride comfortable for your passengers, don't make any mistakes, and your life bar might last long enough for you to reach your final destination. At some stops the game is interrupted with funny cutscenes of conversations and thoughts from some of your regular passengers.
Looking up the game seems to verify your claim fairly easily. It's a bus driving simulator