The Paris Transport Authority, which conveys 4 million passengers per day on lines most of which are underground, has set 4 objectives for air-conditioning its installations. In summer, the temperature should not be more than 5 deg C higher than outside temperatures, air in tunnels should be renewed 4 times every hour, the speed of air currents must not exceed 5 m/s, and humidity must remain between 30 and 70 percent. Better ventilation systems will be installed, as well as air vents, equipment for air renewal and for ventilation in vehicles; biological climatic, thermal and aerodynamic studies will be carried out with the view to energy retrieval.

  • Corporate Authors:

    Regie Autonome des Transports Parisiens

    53 ter. Quai des Grands Augustins, B.P. 70-06
    75271 Paris,   France 
  • Authors:
    • Sutton, D
    • Flahaut, J
  • Publication Date: 1976-9


  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00157911
  • Record Type: Publication
  • Source Agency: International Union of Railways
  • Files: TRIS
  • Created Date: Aug 15 1981 12:00AM