This final report is the result of a test program conducted to compare the following Advanced Design Bus (ADB) ventilation systems identified by the Ventilation and Air Conditioning Subcommittee (VACS) of the American Public Transit Association (APTA): power ventilation using components of the air conditioning system; openable windows within the fixed passenger windows; and roof hatches. The two coaches that participated in the testing were the RTS-11 model (manufactured by General Motors Corporation) and the 870 model (manufactured by Grumman-Flexible Corporation). Both coaches featured large unopenable windows and were tested against the discontinued New Look design coach with openable windows. This study recommends that the specifications for ADBs be changed to insure the maintenance of acceptable interior temperature levels for passengers and drivers in the event of an air conditioning failure or for ADBs ordered without air conditioning. The ventilation methods evaluated during the test program were judged to be ineffective. It is recommended that windows with large openings to the coach exterior be provided on ADB coaches and that the window design be the manufacturer's option. As an alternate, the ventilation systems could be modified to have three to four times their present air-handling capability. Both recommended solutions are to be tested for effectiveness prior to inclusion in the ADB specification. (UMTA)

  • Availability:
  • Corporate Authors:

    Booz-Allen and Hamilton, Incorporated

    Transportation Consulting Division, 4330 East-West Highway
    Bethesda, MD  United States  20814

    Urban Mass Transportation Administration

    400 7th Street, SW
    Washington, DC  United States  20590
  • Publication Date: 1981-3

Media Info

  • Pagination: 37 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00334050
  • Record Type: Publication
  • ISBN: VA-06-0024
  • Report/Paper Numbers: UMTA-VA-06-0024-81-1Final Rpt.
  • Contract Numbers: DOT-UT-70032
  • Files: TRIS, USDOT
  • Created Date: Aug 15 1982 12:00AM