DEVELOPMENT OF A HEADLIGHT EVALUATION MODEL

This paper describes a research program in progress whose goal is the development of a head lamp evaluation model. The model will evaluate headlight systems in terms of a single overall figure of merit representing several measures of driver visual performance under night driving conditions. The model simulates relevant aspects of the night highway environment and incorporates a seeing distance model that determines the photometric conditions produced by vehicle lighting and environmental factors and computes glare and seeing distance to pedestrian and pavement delineation targets. The seeing distance and glare calculations used in the seeing distance model are derived from laboratory formulations of human vision capabilities. A program of field research has been initiated to verify the seeing distance model and to provide data for the simulation of those aspects of the nighttime highway environment that determine head lamp illumination of traget and pavement and, hence, visual performance.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/sr/sr156/156-003.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0360859X
• Supplemental Notes:
  • Presented at a symposium conducted by TRB, September 4-6, 1974 at Ohio State University, and sponsored by TRB, Illuminating Engineering Research Institute, Ohio University and Ohio Department of Transportation. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Corporate Authors:

  Transportation Research Board (TRB)

  Washington, DC   
• Authors:
  • Farber, Eugene
  • Bhise, Vivek
• Conference:
  • Symposium on Driver Visual Needs in Night Driving
  • Location: Columbus Ohio, United States
  • Date: 1974-9-4 to 1974-9-6
• Publication Date: 1975

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 23-39
• Monograph Title: Driver visual needs in night driving: proceedings of a symposium conducted by the Transportation Research Board, September 4-6, 1974
• Serial:
  • Transportation Research Board Special Report
  • Issue Number: 156
  • Publisher: Transportation Research Board
  • ISSN: 0360-859X

Subject/Index Terms

• TRT Terms: Cameras; Drivers; Environmental impacts; Field tests; Glare; Headlamps; Highway curves; Highway delineators; Highway design; Laboratory tests; Light; Losses; Mathematical models; Measurement; Night; Night visibility; Pedestrians; Reflectivity; Sight distance; Simulation; Street lighting; Vision
• Uncontrolled Terms: Field measurements; Models; Reflectance
• Old TRIS Terms: Driver vision; Highway delineation
• Subject Areas: Environment; Highways; Pedestrians and Bicyclists; Safety and Human Factors;

Filing Info

• Accession Number: 00129391
• Record Type: Publication
• Report/Paper Numbers: HS-017 803
• Files: TRIS, TRB, ATRI
• Created Date: Apr 21 1976 12:00AM