The author discusses the high speed train (HST) and advanced passenger train (APT) in relation to the present high speed strategy of British Rail. Details are given of recent improvements in inter-city services which include increased frequency of services, improvement of the quality of the ride, reliability and safety, and reduction in journey time. Two new approaches to reduced journey time, HST and APT, are described. HST is designed to provide 200km/h combined with good braking and passenger comfort and incorporates improved stability of guidance. Reference is made to guidance- hunting and the effect of worn wheel tread profile on the cone angle. APT has been designed to work on existing track at a target speed of 250km/h. Special reference is made to the problems of negotiating curves. A study is presented of possible future developments in relation to need and the reward for matching the need and a number of alternative solutions is outlined. The discussion is illustrated with three possible guided ground transport systems which are designed to operate at speeds of up to 300km/h, 400km/h and above 400km/h respectively. Reference is made to the use of modern technology (such as paved concrete track), the need for further research (such as in the areas of magnetic suspension and alternative linear motors) and the possible need for evacuated tubes to replace track. /TRRL/

  • Corporate Authors:

    Society of Engineers

    Abbey House, Victoria Street
    London SW1,   England 
  • Authors:
    • Newman, M
  • Publication Date: 1973-10-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00096679
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Aug 27 1981 12:00AM