DESIGN OF HIGHWAY TUNNEL VENTILATION-STATE OF THE ART BASED ON LITERATURE SEARCH

A LITERATURE SEARCH WAS PERFORMED TO DETERMINE THE STATE OF THE ART OF VENTILATING LARGE VEHICULAR TUNNELS AND THE ORIGINS OF PRESENT METHODS OF DESIGNING THESE VENTILATION FACILITIES. PHYSIOLOGICAL EFFECTS OF CONTAMINANTS, PRIMARILY CARBON MONOXIDE, HAVE BEEN STUDIED, AND RESULTS USED TO DETERMINE SAFE CONCENTRATIONS. OUTPUT OF CONTAMINANTS OF VEHICLES AND THE EFFECTS OF DIFFERING OPERATING CONDITIONS, GRADES AND ELEVATION HAVE BEEN ASSESSED. VARIOUS METHODS OF VENTILATING VEHICULAR TUNNELS, INCLUDING BOTH NATURAL AND ARTIFICIAL (MECHANICAL) METHODS ARE DISCUSSED. LONGITUDINAL, TRANSVERSE AND COMBINED SYSTEMS ARE DESCRIBED. DERIVATIONS OF EQUATIONS FOR DISTRIBUTIONS OF PRESSURE IN TUNNEL SUPPLY AND EXHAUSE DUCTS, COMMONLY USED IN DESINGING TUNNEL VENTILATION SYSTEMS, ARE PRESENTED. A BRIEF DESCRIPTION IS INCLUDED OF OTHER CONSIDERATIONS IN TUNNEL DESIGN AND OPERATIONS, SUCH AS HAZE, HEAT DISSIPATION, INSTRUMENTATION AND SIGNALLING. /BPR/

• Corporate Authors:

  California Division of Highways

  Bridge Department
  Sacramento, CA  United States  05914

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • BOYD, J W
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Carbon monoxide; Concentration (Chemistry); Contaminants; Cooling; Exhaust gases; Haze; Highways; Impacts; Instrumentation; Pressure; Signaling; State of the art studies; Structural design; Tunnels; Vehicular tunnels; Ventilation systems
• Uncontrolled Terms: Concentration; Tunnel design
• Subject Areas: Bridges and other structures; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00224935
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Report/Paper Numbers: F-8-3
• Files: TRIS
• Created Date: Apr 20 1970 12:00AM