This specification submitted by Mr. Boyes gives a remarkably small equipment for the traffic handled compared with present figures. The chief difference is due to the high speed. There are many who will not believe that a ninety-mile schedule will be maintained, not so many perhaps as would two years ago have refused to believe that man could fly from New York to Philadelphia, an account of the accomplishment of which lies on my desk as I write. For those to whom seeing is necessary to believing, the speed above may be cut in half, which will then be about that in the New York Subway. The express trains will then run on a two-and-a-half-minute schedule and twice as many will be required, but the cost will still be much lower than present day commuting service and efficient enough to make the entire Roadtown from New York to Philadelphia as accessible for commuters as is now a suburban home fifteen miles from New York and a half mile from the railroad station. The single train on the local track will make a round trip between express stations about every fifteen minutes. Those near the middle of the section will catch the train going in either direction, as the time for the express to travel the distance of one express station is negligible. In each Roadtown home there will be an electric buzzer which, when the switch is so turned, will announce the approach of a train in sufficient time to allow one to get to the station. The buzzer will have two distinct sounds, one for trains in either direction. Roadtown parcels, such as are not cared for in a small mechanical carrier described in Chapter VI, will be hauled on the local trains. Roadtown freight service will be at night on the express tracks, the trains stopping at stations located at suitable distances and distinct from the passenger stations. At these freight stations there will be elevators or inclines delivering freight to or receiving it from the land outside, while furniture, etc., for the houses will be elevated to the platform above and carried on the very early trips of the local trains to one’s door. Wrecks on such a railroad system can only occur from actual breaking of some working part, a comparatively rare cause of present wrecks. The local track collision cannot occur as there is only one train in a section. On the two express tracks, “tail-end” collisions will be prevented by a block system that turns off the power automatically when trains approach within a certain distance of each other. This system is in operation in the New York Subways. _The Street Upon the Roof._