SINGLE TRACK SYSTEM CONCEPTS STUDY

THIS MILESTONE REPORT HAS BEEN PREPARED UNDER THE INSTITUTE FOR RAPID TRANSIT (IRT) PROJECT "VENTILATION AND ENVIRONMENTAL CONTROL IN SUBWAY RAPID TRANSIT SYSTEMS," AND IS ONE OF MANY SUCH REPORTS LEADING TO THE FINAL PRODUCT--A "SUBWAY ENVIRONMENTAL DESIGN HANDBOOK." THIS REPORT DESCRIBES THE IMPLEMENTATIONS OF THE SINGLE-TRACK SUBWAY ENVIRONMENT (ST-SES) COMPUTER PROGRAM IN AN EVALUATION OF THE AIR FLOWS AND TEMPERATURES RESULTING FROM SEVERAL SINGLE TRACK SUBWAY GEOMETRIES AND TRAIN OPERATIONS. GEOMETRIC AND OPERATIONAL PARAMETERS TREATED AS VARIABLES INCLUDE VENT SHAFT LOCATION AND FLOW IMPEDANCE, TUNNEL CROSS-SECTION, AND TRAIN HEADWAY, DWELL TIME, AND MAXIMUM SPEED. IN ADDITION, THREE ENVIRONMENTAL CONTROL SYSTEM CONCEPTS WERE SIMULATED: MECHANICAL VENTILATION, UNDERPLATFORM EXHAUST, AND TRACK PROFILE VARIATION. /UMTA/

• Supplemental Notes:
  • Contract SC-72-100 UMTA-DC-06-0010-72-1
• Corporate Authors:

  Transit Development Corporation, Incorporated

  1730 M Street, NW, Suite 911
  Washington, DC  United States  20036
• Publication Date: 1972-12

Media Info

• Pagination: 101 p.

Subject/Index Terms

• TRT Terms: Air; Environmental engineering; Flow; Rapid transit; Simulation; Subways; Urban transportation
• Uncontrolled Terms: Air flow
• Subject Areas: Design; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00203674
• Record Type: Publication
• Report/Paper Numbers: 9
• Files: TRIS
• Created Date: Jul 31 1974 12:00AM