ECONOMIC FACTORS IN TUNNEL CONSTRUCTION

This report describes a new cost estimating system for tunneling. The system is designed so that it may be used to aid planners, engineers, and designers in evaluating the cost impact of decisions they may make during the sequential stages of planning and design of urban transportation tunnels. In developing a cost estimating technique and method, an extensive review was made of currently available estimating systems. Techniques were adapted from the systems studied where applicable, and new methodologies were developed as needed for optimization. A detailed estimating technique is used in which units of effort are converted to obtain a base cost for a "standard" tunnel constructed in 1976 in Washington, DC. Correction factors may then be applied to obtain the costs in other time frames and geographic locations. The use of units of effort provides a technical base which does not change rapidly with time, but may be updated as changes in technology and productivity occur.

  • Supplemental Notes:
    • Prepared in cooperation with Singstad, Kehart, November, and Hurka, New York.
  • Corporate Authors:

    Underground Technology Development Corporation

    8425 Frye Road
    Alexandria, VA  United States  22309

    Singstad, Kehart, November, and Hurka

    One World Trade Center
    New York, NY  United States  10048

    Urban Mass Transportation Administration

    400 7th Street, SW
    Washington, DC  United States  20590

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  United States  02142
  • Authors:
    • Foster, E L
    • MCDONALD, R
    • Wightman, W
    • Toporoff, I
  • Publication Date: 1979-2

Media Info

  • Pagination: 306 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00197344
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: UMTA-MA-06-0025-7910Final Rpt.
  • Contract Numbers: DOT-TSC-1106
  • Files: NTIS, TRIS, USDOT
  • Created Date: Jul 31 1981 12:00AM