MASS TRANSIT IN THE UTILIZATION OF CITY STREETS

THE RELATIVE EFFICIENCIES OF MASS TRANSIT VEHICLES AND PRIVATE AUTOMOBILES ARE COMPARED IN THEIR MANNER OF UTILIZING STREET SPACE AND MOVING PEOPLE. FOR COMPARATIVE EFFICIENCIES OF DIFFERENT MODES OF TRANSPORTATION, THREE ELEMENTS ARE CONSIDERED FOR EACH TYPE OF VEHICLE: SPEED OF THE VEHICLE, THE SPACE OCCUPIED BY THE VEHICLE IN THE TRAFFIC STREAM, AND THE CARRIED LOAD. THESE VARIABLES WERE INVESTIGATED FOR AUTOMOBILES, BUSES AND STREET CARS IN WASHINGTON, D.C., METROPOLITAN AREA AND FOR AUTOMOBILES AND TROLLEY COACHES IN ATLANTA, GEORGIA. THE RESULTING EFFICIENCIES ARE SUMMARIZED IN A TABLE. AUTOMOBILES IN ATLANTA TRAVELED SLOWER AND CARRIED FEWER PASSENGERS THAN DID AUTOMOBILES IN WASHINGTON. FOR THIS REASON, TROLLEY COACHES IN ATLANTA ARE SHOWN TO HAVE A HIGHER EFFICIENCY THAN BUSES IN WASHINGTON. IT IS EMPHASIZED THAT OPERATING CONDITIONS ARE SUBJECT TO CHANGE AND THE RATES AT WHICH PEOPLE ARE MOVED IN VARIOUS TYPES OF VEHICLES DO NOT REPRESENT THE MAXIMUM NUMBER OF PEOPLE THAT COULD BE MOVED UNDER HYPOTHETICAL OPERATING CONDITIONS. IN WASHINGTON, D. C., BUSES WERE 3.7 TIMES AS EFFICIENT AS AUTOMOBILES ON DOWNTOWN STREETS, 4.6 TIMES AS EFFICIENT IN INTERMEDIATE AREAS, AND 2.6 TIMES AS EFFICIENT AS AUTOMOBILES IN OUTLYING AREAS. ON A FREEWAY, BUSES IN ATLANTA, GEORGIA, WERE 7.2 TIMES AS EFFICIENT AS AUTOMOBILES. IN ATLANTA, TROLLEY COACHES WERE 6.3 TIMES AS EFFICIENT AS AUTOMOBILES ON DOWNTOWN STREETS, 8.7 TIMES AS EFFICIENT IN INTERMEDIATE AREAS OF THE CITY, AND 6.3 TIMES AS EFFICIENT AS AUTOMOBILES IN OUTLYING AREAS. IN WASHINGTON, STREETCARS WERE 1.8 TIMES AS EFFICIENT AS AUTOMOBILES ON DOWNTOWN STREETS.

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  • Supplemental Notes:
    • No 167, pp 1-9, 15 TAB Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Authors:
    • Walker, William P
    • Flynt, Roy A
  • Publication Date: 1957

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  • Accession Number: 00241101
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: May 26 1994 12:00AM