This report describes the results of a study to provide a set of guidelines to develop optimum stencil specifications by defining the problems of the legibility of information stenciled on freight cars. Legibility problems under conditions of both direct observation and using closed circuit television (CCTV) were examined. The recommended stencil guidelines are based on: 1) a review of the literature, 2) observations at railroad classification yards, 3) a series of photometric studies, both in the laboratory and in a classification yard, 4) interviews with yard clerks experienced with CCTV stencil legibility, and 5) the legibility performance of yard clerks viewing 330 cars with various stencil properties presented in a test video tape.

  • Corporate Authors:

    R&R Research, Incorporated

    1373 Grandview Avenue
    Columbus, OH  United States  43212
  • Authors:
    • Rockwell, T H
    • Roach, D E
  • Publication Date: 1980-8

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: v.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00319921
  • Record Type: Publication
  • Report/Paper Numbers: AAR R-441
  • Files: TRIS
  • Created Date: Dec 30 1980 12:00AM