VENTILATION OF HIGHWAY TUNNELS AND UNDERGROUND PARKING GARAGES

VENTILATION DES TUNNELS ROUTIERS ET DES PARKINGS SOUTERRAINS.

Basic ventilation principles for highway tunnels and underground parking garages are outlined. A ventilation system is characterized by and its calculation based on the flow of fresh air circulating: (1) for tunnels, the calculation must be based on a traffic study, the polluting gas content being a function of traffic congestion. There exist 3 types of ventilation: longitudinal, semi-transversal and transversal. The selection criteria, which affect each other, must be taken into account: length, traffic flow, dimension and shape of the section, location of the plants, architectural constraints, permissible nuisance to the environment. Examples are given of necessary reservations in some installations. (2) for underground parking garages, environmental and cost-effectiveness constraints are even more important. The basic factor determining the ventilation flow is the expected traffic volume. The latter is a function of the way the garage is used (private, peak hour, general parking garage). The time during which vehicles are travelling must be taken into consideration. This time depends on the dimensions and design of the garage. It is important to choose a system which allows fresh air to flow to all parts of the garage. The system can be semi-transversal or transversal. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03990834
• Authors:
  • Romand, H
• Publication Date: 1974-11-12

Language

• French

Media Info

• Features: Figures; Photos; Tables;
• Pagination: p. 271-279
• Serial:
  • TUNNELS ET OUVRAGES SOUTERRAINS
  • Issue Number: 6
  • Publisher: L'ASSOCIATION FRANCAISE DES TRAVAUX EN SOUTERRAIN
  • ISSN: 0399-0834

Subject/Index Terms

• TRT Terms: Air; Air pollution; Atmospheric circulation; Carbon monoxide; Constraints; Economic efficiency; Environment; Flow; Hydrologic phenomena; Length; Location; Parking facilities; Size; Sound; Time; Traffic congestion; Traffic density; Traffic flow; Traffic surveys; Traffic volume; Tunnels; Underground parking garages; Underground structures; Ventilation systems
• Uncontrolled Terms: Air flow; Subterranean; Traffic studies
• Subject Areas: Bridges and other structures; Design; Economics; Highways; Hydraulics and Hydrology; Operations and Traffic Management; Terminals and Facilities; I25: Design of Tunnels;

Filing Info

• Accession Number: 00157474
• Record Type: Publication
• Source Agency: Central Laboratory of Bridges & Highways, France
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Dec 8 1977 12:00AM