Centralizing Multimodality

So here in Davenport we have a single ground transportation station that brings together all the transit modes available in the city.Of course, that's just buses (intercity and intracity).But lots of other cities have more transit options, and still manage to bring them together into union/hub/transfer stations. Hallo, Amsterdam Centraal!Other cities lack a single centralized station but have multiple stations that serve a variety of lines, functionally providing a range of multimodal stations: think the many termini of London, for instance.Or Paris, where the Gare du Nord (above) brings together metro, RER, and intercity lines but not, e.g. the trams (which to be fair aren't designed to come this far into the center city), and other stations like Gare Montparnasse do the same for other lines.Other cities, though, don't integrate their modes nearly as much. My own chief example would be Chicago, where Union Station is a Metra and intercity rail hub but notably underserved by the…