INDUCED TRAFFIC ON CHESAPEAKE BAY BRIDGE

ALL PERSONS IN THE TRAFFIC FIELD ARE FAMILIAR WITH THE ESTIMATES OF TRAFFIC POTENTIAL OF A PROPOSED NEW FACILITY BY VARIOUS METHODS OF TRAFFIC ASSIGNMENT TO THE SEVERAL SECTIONS OF A NEW ROUTE. IN MANY INSTANCES THESE ESTIMATES HAVE A TENDENCY TO BE ON THE CONSERVATIVE SIDE. IN FACT, RECENT OPENINGS OF SEVERAL MAJOR FACILITIES HAVE REVEALED TRAFFIC VOLUMES GREATLY IN EXCESS OF THE ESTIMATES PREPARED PRIOR TO CONSTRUCTION OF THE FACILITIES. THE CHESAPEAKE BAY BRIDGE WAS ONE OF THESE. IT WAS IMMEDIATELY APPARENT THAT THE TRAFFIC VOLUMES ON THE BRIDGE WERE FAR GREATER THAN THOSE RECORDED PREVIOUSLY ON THE FERRY IT REPLACED. THROUGH A SERIES OF ORIGIN-AND-DESTINATION STUDIES MADE ANNUALLY AT THE FERRY AND BRIDGE TERMINI A CONSIDERABLE AMOUNT OF FACTUAL DATA WAS OBTAINED. FROM THESE DATA IT WAS DETERMINED THAT THE INCREASES IN TRAFFIC VOLUMES WERE NOT CONFINED TO ANY PARTICULAR ORIGIN-AND-DESTINATION PATTERN, NOR TO ANY MONTH OR SEASON OF THE YEAR BUT WAS QUITE GENERAL. ALSO INDICATED WAS THE FACT THAT THE TOTAL NUMBER OF TRIPS TO THE EASTERN SHORE OF MARYLAND BY BOTH THE BRIDGE CROSSING AND ROUTES AROUND THE HEAD OF THE BAY HAD EACH INCREASED MATERIALLY. IT IS EVIDENT THAT THE BRIDGE, IN ADDITION TO PROVIDING A MORE EFFICIENT ROUTE, AND CONTRIBUTED TO THE DEVELOPMENT OF THE EASTERN SHORE, THUS GENERATING MORE TRAFFIC THAN EVER BEFORE. IT WAS ALSO ASCERTAINED THAT THE NUMBER OF TRIPS MOVING BETWEEN THE SOUTH AND THE NORTH, PARTICULARLY TRIPS IN THE 250 MILES AND OVER CATEGORY, ARE INCREASING ANNUALLY ON THE BRIDGE BUT WERE ALMOST NEGLIGIBLE ON THE FERRY. IT IS BELIEVED THAT THE STUDY DEFINITELY PROVES THAT THERE WAS A GREAT DEAL OF DIVERSION OF TRAFFIC FROM OTHER MAJOR NORTH-SOUTH ROUTES. /AUTHOR/

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  • Supplemental Notes:
    • No 119, pp 39-52, 7 FIG, 5 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:
    • Bunting, Ernest W
  • Publication Date: 1956

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  • English

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  • Accession Number: 00227850
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 2004 2:36AM