You can't. It's a super car-centric game. You can't even build pedestrian-only streets or lanes. Light rail is married to roads. There's no way to set bus route

You can't. It's a super car-centric game. You can't even build pedestrian-only streets or lanes. Light rail is married to roads. There's no way to set bus routes, buses will visit every single stop in town. Oh and subways don't exist either. Hopefully there's a 'rush hour' style expansion that lets us simulate cities other than Los Angeles.