An inventory of future transit (fixed guideway) subsurface construction in the United States and Puerto Rico was undertaken, covering the 1976-1990 time frame. A total of 19 transit constructing authorities in 17 cities were surveyed by questionnaire and on-site visitations. Information was gathered on status, routes, type of construction, costs, geology, environmental factors, and any other unique factors. A total of over 120 miles of planned construction was revealed, expected to cost over $7.5 billion, in the survey time period. However, the total is heavily influenced by planned Washington construction. Among other cities about 30 miles is totally funded; the rest is planned but unfunded. Costs of cut and cover are beginning to approach mined tunnel (except in New York), and environmental considerations often swing the balance.

  • Supplemental Notes:
    • Prepared in cooperation with Urban Mass Transportation Administration, Washington, D.C.
  • Corporate Authors:

    Transit Development Corporation, Incorporated

    1730 M Street, NW, Suite 911
    Washington, DC  United States  20036

    Urban Mass Transportation Administration

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

    Office of the Secretary of Transportation

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Vaccaro, A P
  • Publication Date: 1976-6

Media Info

  • Pagination: 109 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00154798
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOT-TST-76-86 Final Rpt.
  • Contract Numbers: DOT-OS-60065
  • Files: NTIS, TRIS, USDOT
  • Created Date: Jun 17 1981 12:00AM