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High-speed mass transportation, a new concept : an exploratory study by members of the faculty of Rensselaer Polytechnic…

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SECTION D ENVIRONMENT by Joseph V. Foa ' j
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D. ENVIRONMENT (Foa) D-l. ABSTRACT This section deals with the control of pressure, temperature and composition of the air…
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D-2 with respect to time if the vehicle is reasonably stable. In principle, the difficulty could be overcome through the use…
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--------------------------------------------------~~~--- D-3 at Rensselaer (Ref. 3). The underlying concept is that of a…
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D-4 extracted as a stream of cold air and flow b as a stream of hot air. Fig. D-3 shows the predicted performance of this…
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D-5 vehicles could travel the length of the tube before air renewal becomes necessary for continuing engine opera- tion.…
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D-6 Needless to say, the most promising solution of the air contamination problem lies in the successful development of…
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D-7 energy separator into the cabin. A determination should also be made of the required air renewal time and of the most…
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- - - - - - - - - - - - - - - - - - 1 /' /' FIG. 0-1 FIG. 0-2
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\ 1\ \ 1000 \ 1\ Bb = 30° \ \ \ ~=CT=O 900 \ \, l'\ I \. , \ \ 1\ I\. \ ' ~ '\ :\.. \…
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SECTION E COMMUNICATIONS AND SENSING by A. Bruce Carlson
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E. COMMUNICATIONS AND SENSING (Carlson) E-l. ABSTRACT E-l This section deals with the communications and sensing mechanisms…
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E-2 follows: (1) Tube-vehicle electrical coupling. (2) Vehicle sensing. (3) Two-way communications. (4) Fail-safe…
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In the approximate frequency range of 100 - 500 Mc the tube will act as a circular waveguide, guiding E-3 the electrical…
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E-4 transmission line, the tube can be sectioned into zones for communications and sensing. This is discussed in further…
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E-5 of the absolute magnitude of the vehicle signal. Velocity sensing is accomplished by detecting the turning points of the…
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E-6 will be many less vehicles than sensors in a tube of moderate length. Furthermore, traffic control and switching is…
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E-7 system is that individual carrier frequencies are assigned to each possible vehicle in the tube. These carriers are…
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E-8 by a separate multiplexed line. All vehicle carrier signals returned to the con- trol center can be synchronously…
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E-9 In view of the fact that the communications equipment cost will be but a small fraction of the total system cost, a…
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E-10 high-speed tube-vehicle system. Adequate fail- safe measures can also be provided. This scheme however was based on…
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ZONE n-I FAR END ZONE n NEAR END ZONE n FAR END ZONE n+1 NEAR END ,.-- TUBE WALL "-~~~~"'~~~>S…
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ZONE n FAR END DETECTOR + ZONE n+1 DETECTOR ZONE n+1 NEAR END NEAR END ~ COMPOSITE SIGNAL ' \ ZONE n . ~FAR…
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n n , BUFFER , 'DETECTOR' I t PROCESSOR VEHICLE VEHICLE 1.0. DATA TONE I MODULATOR I VEHICLE CARRIER…
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CARRIER ••....•.... +200 +3200 SMe VEHICLE-TO-TUBE SPECTRUM CONTROL SUBCARRIER AND SIGNALS I I ,,- I ,., I 'I…
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