Still another ascending and descending escalator; this time for the store's own family. Remember that here is a second stream, whose prompt and efficient handling is quite as important as that of the shoppers. The broad stair in Thirty-fourth Street at which the majority of the family arrives, between eight-thirty and eight-forty-five of the business morning, is frequently choked with the rush of incoming employees. It will never be choked once the new Macy's is done. For then the workers will be handled in great volume upon a double escalator, not merely double-file, but double in the sense that ascent and descent are handled simultaneously and in compact space, very much as the double stairways that are installed in modern school-houses and industrial plants. In the enlarged building the locker rooms and the other facilities of the arrival of the store's employees will be placed upon the second floor and the first and second mezzanines; retained from the present plan, but very greatly enlarged. The Macy worker comes to them by means of the escalator, quickly and easily, and in a similar fashion ascends or descends to his or her department. It sounds simple and easy but it is not quite so easy when one comes to plan for a maximum of 8,800 employees--in 1932. A third traffic stream remains for our consideration--and the architect's. In many respects it is the most difficult. Human beings, to a large extent at least, can move themselves. Goods cannot. Yet obviously the great stream of merchandise into the building and then out again must never be permitted to clog its arteries--not for a day, nor even for an hour. This means that there must be not only plenty of channels and conduits for it, but ample reservoir space as well. Which, being translated, means of course generous warehousing rooms, of one sort or another. Perhaps it would be well before we come to the ingenious plans for making this inanimate stream most animate indeed, to consider the general plan of Macy's as it will be after its structural renaissance. The exterior of the present great building will remain practically unchanged. Just back of it and to the west of it on the new plot, one hundred and twenty-five feet in depth in both Thirty-fourth and Thirty-fifth Streets, and extending the full two hundred feet between them, will be erected a new steel and concrete building, harmonizing in its façade and of the most modern type of construction; as we have already seen, nineteen stories in height with two sub-basements in addition. The first ten stories of this structure, at the exact floor levels of the old, will be thrown into the existing building and the lower seven of them used for selling purposes. The uppermost three stories of the combined building--covering the entire Macy site--will be used, as we shall see in a moment or two, for the reception and the warehousing of the merchandise, and other non-selling activities of the store.