The main thrust of the symposium is reviewed and recommendations concerning a future course of action relating to metric conversion and standardization are discussed. The worldwide acceptance of SI is predicted, and labor and small business support for a modified congressional bill is considered. Although much emphasis was placed on the overall size of the tunnel, standardization of components, particularly those that must be replaced, is as important. The importance of national legislation is also emphasized. The British experience in this area is quoted and closer work with the American National Metric Council is urged. The need for a time schedule was also noted. It is suggested that legislation concerning U.S. participation in international standards be passed before that relating to metric conversion. It is recommended that the U.S. National Committee on Tunneling Technology promote the colloboration of different parties such as government authorities, the Bureau of Mines and others. In the area of standardization, the effectivity of working with the American National Standards Institute and ISO is pointed out. Areas in which improvements in international standards and safety regulations could be developed are outlined. Rock and soil testing and classification methods could also be standardized. Comments are made regarding the standardization of support systems, of tunnel boring machines and of tunnel areas.

  • Supplemental Notes:
    • Report of a symposium conducted by Standing Subcommittee No. 5, International Activities of the U.S. National Committee on Tunneling Technology, held on May 21-22, 1974 in Washington, D.C.
  • Corporate Authors:

    National Research Council

    National Committee on Tunneling Technology
    Washington, DC  United States  20418
  • Authors:
    • Pfleider, E P
  • Publication Date: 1975

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Filing Info

  • Accession Number: 00127941
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM