With cities in the tropics such as Caracas, Sao Paulo and Calcutta now building transit systems, the problem of keeping air temperatures in tunnels to a tolerable level is becoming more acute. Norman H. Danziger outlines the basic principles evolved to produce a satisfactory thermal balance on underground railways, part of a three-year research programme sponsored by the Institute for Rapid Transit. It has been found that trains account for between 85 and 90 percent of all the heat generated in a subway system. About half of this heat is caused by braking, the remainder largely by acceleration, traction, and vehicle air conditioning.

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  • Corporate Authors:

    IPC Transport Press, Limited

    Dorset House, Stamford Street
    London SE1 9LU,   England 
  • Publication Date: 1973-7

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  • Accession Number: 00048165
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 4 1981 12:00AM