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High-beam intensity, visual performance and safety-related impacts.

File Language:
English


Details

  • Alternative Title:
    Visual performance and safety benefits of adaptive driving beam headlighting systems
  • Creators:
    Bullough, John D.
  • Corporate Creators:
    Rensselaer Polytechnic Institute. Lighting Research Center
  • Corporate Contributors:
    Transportation Lighting Alliance
  • Subject/TRT Terms:
  • Publication/ Report Number:
    TLA 2015-01
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    Rensselaer Polytechnic Institute. Lighting Research Center
  • Abstract:
    It has been understood for many years that driving above certain speeds at night while using low beam

    headlights can result in insufficient visibility to respond to hazards on the road. As new vehicle

    headlighting technologies emerge, the practicality of intelligent, adaptive high-beam functions has

    increased so much that these systems are now commercially available in many parts of the world. These

    technical developments in turn invite questions about the optimal photometric performance of high beam

    headlights. One important barrier to the more frequent use of high beam headlighting systems has been

    concerns about creating glare to the drivers of oncoming and preceding vehicles. If it can be demonstrated

    that adaptive high-beam control can provide acceptable glare control, it may be possible to question the

    need for the current limits on the luminous intensity of high-beam headlights. In this report, visual

    performance analyses are summarized that allow the evaluation of the potential benefits of increased

    luminous intensity on forward visibility, and potential implications for driving safety are discussed.

  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:2915387e9a9db98e0f58b58a85dd9c16a3e991568a1b856676600c6985dc8d97
  • Download URL:
  • File Type:
    Filetype[PDF - 534.09 KB ]
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