DESIGN APPROACH FOR THERMAL REMOVAL OF SNOW AND ICE ON AUTOMATED--TRANSPORTATION-SYSTEM GUIDEWAYS

A computer simulation technique is described for modeling dynamic heat-transfer processes that influence the snow and ice removal performance of guideway heating systems. A concrete-channel guideway section is modeled, and the analysis results are presented to demonstrate the potential of this technique as a design tool for evaluating and screening snow-removal concepts. A cost model of guideway heating systems is developed. The model includes delay costs incurred by riders when the transportation system is unavailable as a result of snow or ice accumulation on the running surface. This cost is added to the capital, operating, and maintenance costs, and an optimum cost-design point is identified for an electrically heated concrete guideway. A comparison of the costs of field testing with those of environmental chamber testing is also presented. It is recommended that design verification tests be conducted under extreme operating conditions to identify potential inadequacies missed in computer modeling. This strategy favors the use of chamber testing, where extreme conditions can be simulated on demand. (Author)

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 1-8
  • Monograph Title: GUIDEWAY SNOW AND ICE CONTROL AND ROADSIDE MAINTENANCE
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00334198
  • Record Type: Publication
  • ISBN: 0309031214
  • Files: TRIS, TRB
  • Created Date: Aug 15 1982 12:00AM