DEVELOPMENT AND TEST OF SIMPLIFIED METHODS TO PREDICT SUBWAY AIR PRESSURE TRANSIENTS

This report is one of many reports leading to final product, a subway environmental design handbook. Simplified models are introduced to predict subway air pressure transients. The models deal with pressure changes due to portal entry, post portal entry, vent passage, portal exit and passing trains. Predictions yielded by the models are compared to full-scale field test data gathered at BART. It was concluded that the models are sufficient to identify pressure transient problem areas, as well as solutions in the early stages of subway system design.

• Supplemental Notes:
  • Prepared by Associated Engineers/A Joint Venture, New York.
• 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

  Associated Engineers/A Joint Venture

  New York, NY  United States 
• Publication Date: 1974-4

Media Info

• Pagination: 143 p.

Subject/Index Terms

• TRT Terms: Aerodynamics; Air resistance; Atmospheric circulation; Atmospheric pressure; Computer programs; Drag; Dynamic pressure; Environmental impacts; Environmental quality; Mathematical models; Mathematical prediction; Mechanical resistance; Pressure; Railroad trains; Rapid transit; Simulation; Subways; Train operations; Transients; Tunnels; Underground structures; Vehicle dynamics; Ventilation systems
• Identifier Terms: San Francisco Bay Area Rapid Transit District
• Uncontrolled Terms: Experimental data
• Old TRIS Terms: Pressure signatures; Subway environment; Subway railways; Train performance; Train resistance; Tunnel environment
• Subject Areas: Bridges and other structures; Data and Information Technology; Environment; Maintenance and Preservation; Public Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00092354
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Tech. Rpt., UMTA-DC-06-0010-74-1
• Files: NTIS, TRIS, USDOT
• Created Date: Nov 5 1982 12:00AM