While American and European low-beam headlamps differ in their design, beam patterns, and maintenance features, sight-distance studies have shown little difference in their target-detection performance. One of the major problems with the performance of headlighting systems today is the high incidence of misaimed headlamps. The intensity of low-beam systems cannot be safely increased until the state of the art of keeping headlamps properly aimed is much improved. Experimental studies have not produced a consensus on the single "best" low-beam system, partly because the test conditions have not permitted examination of all variables present in real-world night driving. Given the present state of the art of headlighting, there appears to be no justification for prohibiting individuals from using European headlamps in the U. S. A test program should be initiated to investigate the question of deterioration of European headlamp performance over time. Such research may produce evidence that would support the present ban on composite European headlamps.

  • Corporate Authors:

    Highway Safety Research Institute

    Huron Parkway and Baxter Road
    Ann Arbor, MI  United States  48109
  • Authors:
    • Olson, P L
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00183258
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Dec 12 1978 12:00AM