of traffic on the express route, (2) avoid excessive discharge or collection volume in any central city street, and (3) extend the advantage of free flow as close as possible to the central points of ultimate origin and destination of the traffic.
At traffic interchanges on the circumferential distributor route and at junctions of this route with each entering express road, are points favorable for the location of parking garages. Vehicles that can be conveniently parked at these locations will be kept completely out of the central street system, and the burden upon these streets accordingly reduced. For that part of the traffic that cannot be conveniently terminated at these points, other off-street parking facilities at well-chosen central points will be required, with movement to and from such points by way of the ordinary streets.
