SUBWAY ENVIRONMENTAL SIMULATION PROGRAM AND SUBWAY ENVIRONMENTAL DESIGN HANDBOOK VALIDATION THROUGH FIELD TESTING. PART II OF IV: COMPUTER SIMULATION PROGRAMS. FINAL REPORT

This technical report is Part II of IV of a project to validate by field tests specific portions of the Subway Environmental Simulation (SES) Computer Program and the Subway Environmental Design Handbook (SEDH) as they relate to underplatform exhaust systems; train-borne, naturally-convected resistor grid banks; stratification of air in high domed-roof subway stations; gravity-type, station dome relief vents; and the heat sink effect in stations. This report covers the description of the computer simulation programs being utilized; sources of program input data including data from previous field testing; typical computer input and output data; and specific comparisons of field-measured and computer-simulated data relative to train car resistor grid temperatures and station platform ambient air temperatures. General correlation was found between the measured and simulated resistor grid temperatures with the measured temperatures ranging to 20% below the simulated temperatures for current operating conditions. For 1990 conditions (higher train speeds, shorter station dwell times), the maximum difference reduced to about 15%. Less than a degree difference was found at one station between average field-measured and computer-simulated platform air temperatures. At a second station, the difference was five degrees with the measured temperature being the higher. Recomendations will be included in the final report.

• Supplemental Notes:
  • NTIS Order No. PB254-788.
• Corporate Authors:

  De Leuw, Cather and Company

  1201 Connecticut Avenue, NW
  Washington, DC  United States  20036

  Washington Metropolitan Area Transit Authority

  600 Fifth Street, NW
  Washington, DC  United States  20001

  Urban Mass Transportation Administration

  400 7th Street, SW
  Washington, DC  United States  20590
• Publication Date: 1983-2

Subject/Index Terms

• TRT Terms: Computer programs; Emission control systems; Environment; Exhaust gases; Field tests; Handbooks; Heat sinks; Information, data, and knowledge; Rapid transit cars; Resistors; Simulation; Structural design; Subways; Temperature measurement; Tunnels
• Identifier Terms: Urban Mass Transportation Act; Washington Metropolitan Area Transit Authority
• Uncontrolled Terms: Environmental data; Tunnel design
• Old TRIS Terms: Air temperatures; Resistor grids; Umta section 6
• Subject Areas: Bridges and other structures; Data and Information Technology; Public Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00462003
• Record Type: Publication
• Source Agency: Urban Mass Transportation Administration
• Report/Paper Numbers: UMTA-DC-06-0267-86-2
• Contract Numbers: DC-06-0267
• Files: TRIS, USDOT
• Created Date: Aug 28 2004 4:41AM