VEHICULAR ROAD TUNNEL VENTILATION SYSTEMS

THE AUTHOR DESCRIBES AND DISCUSSES THE VENTILATION SYSTEMS USED IN EACH OF THREE VEHICULAR ROAD TUNNELS THAT HAVE BEEN DESIGNED IN THE USA IN RECENT YEARS. THEY REPRESENT THE THREE TYPES OF CROSSING; URBAN, MOUNTAIN AND SUBAQUEOUS. THE URBAN EXAMPLE IS THE LOWRY HILL TUNNEL, MINNEAPOLIS, WHICH CARRIES AN INTERSTATE HIGHWAY UNDER STREETS IN THE VICINITY OF RELIGIOUS STRUCTURES, AN ART GALLERY AND A THEATRE. DETAILS ARE GIVEN OF THIS FULLY AUTOMATIC SEMI-TRANSVERSE VENTILATION SYSTEM. INCLUDING INFORMATION RELATING TO ATTENUATION OF NOISE AND CARBON MONOXIDE. THE AUTHOR MAKES SPECIAL REFERENCE TO THE NEED TO CONSIDER THE EFFECT OF VENTILATION DESIGNS ON THE ABOVE GROUND ENVIRONMENT AND THE PROBLEMS OF CONFIGURATIONS. THE TRANS KOOLAU TUNNEL IN HAWAII IS NEXT CONSIDERED, WHICH CARRIES THE HONOLULU TO KANLOHE HIGHWAY UNDER THE KOOLAU MOUNTAIN RANGE. AN ACCOUNT IS GIVEN OF THE STUDIES THAT WERE MADE TO ESTABLISH AIR QUANTITY REQUIREMENTS, TO SELECT SUITABLE FANS, OF THE AIRFLOW AND POLLUTANT LEVELS, OF VEHICLE GENERATED POLLUTANTS AND AIR DISTRIBUTION. NOTES ON CARBON MONOXIDE SAMPLING ARE ALSO GIVEN. THE THIRD TUNNEL DISCUSSED IS THE SUBAQUEOUS HAMPTON ROADS TUNNEL IN VIRGINIA WHICH CROSSES UNDER THE MOUTH OF THE JAMES RIVER AND PARALLELS AN EARLIER TUNNEL. EXAMPLES ARE GIVEN OF CHANGES IN DESIGN WHICH HAVE RESULTED FROM EXPERIENCE WITH THE EARLIER TUNNELS. DETAILS ARE GIVEN OF THE AIR QUANTITY AND CARBON MONOXIDE LEVEL AND OF THE CONTINUOUS CARBON MONOXIDE SAMPLING, ANALYZING AND RECORDING SYSTEM. /TRRL/

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • BENDELIUS, A G
  • Publication Date: 1974-5-6

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 57-62
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00080707
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 26 1975 12:00AM