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Research article
First published January 2001

Escape Adits for Tunnel Safety

Joseph Gonzalez and Kent PeaseView all authors and affiliations
Volume 1770, Issue 1
https://doi.org/10.3141/1770-26

Abstract

The Upper Narrows Tunnel on Highway 160 in southern Colorado has been designed with a unique system of escape adits to provide for life safety in the event of emergencies in the tunnel. The use of adits provides for a higher level of safety in this application than would be provided by the more common ventilation system. A summary of the unique project conditions that facilitate such a system is presented, and the methods of analyses and results of calculations used during the design are reviewed.

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References

1. Parsons Brinckerhoff Quade & Douglas, Inc. SH160—Wolf Creek Tunnel, Tunnel Systems Report. Carter Burgess, Inc.; Haley & Aldrich, Inc., June 1999.
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2. Parsons Brinckerhoff Quade & Douglas, Inc. Subway Environment Simulation (SES) Computer Program, Version 3, Part 1: User’s Manual. In Subway Environmental Design Handbook, Vol. 2, U.S. Department of Transportation, Oct. 1980.
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Published In

Volume 1770, Issue 1
Pages: 204 - 208
Article first published: January 2001
Issue published: January 2001

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© 2001 National Academy of Sciences.
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Joseph Gonzalez
Parsons Brinckerhoff Quade & Douglas, Inc., 75 Arlington Street, Boston, MA 02116
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Kent Pease
Haley & Aldrich, Inc., 110 16th Street, Suite 900, Denver, CO 80202
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This article was published in Transportation Research Record: Journal of the Transportation Research Board.

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