This study analyzed the results of braking performance tests conducted by the Bureau of Motor Carrier Safety in 1983-1984 and compared them with tests conducted in 1974. The general conclusions were: (1) The 2-axle trucks (both light weight and heavy) did not perform as well in 1983-1984 as they did in 1974. (2) The 3-axle trucks exhibited significantly improved performance since 1974 although their configurations is low. The performance of truck-trailer configurations also improved although not as much as that of the 3-axle trucks. (3) The change in the performance of tractor-semi configurations was not as great as in the configurations already mentioned. None of the tractor-semi configurations improved very much and the data indicated that their performance may have deteriorated somewhat. (4) Earlier brake tests show that tests indicated a need for increased maintenance, and the 1983-84 tests show that brake maintenance is still a problem. The percentage of brakes out of adjustment is ranged from 26 to 36 percent for the various vehicle configurations and for the samples as a whole, 30 percent of the brakes of the vehicles tested were out of adjustment.

  • Corporate Authors:

    Mandex, Incorporated

    2106-C Galows Road
    Vienna, VA  United States  22180
  • Authors:
    • Hargadine, E O
    • Klein, T M
  • Publication Date: 1984-9

Media Info

  • Pagination: 66 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00394878
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 31 1985 12:00AM