Cogprints

Modeling peripheral visibility under headlamp illumination

Bullough, John D. (2002) Modeling peripheral visibility under headlamp illumination. [Conference Paper]

Full text available as:

[img]
Preview
PDF
1399Kb

Abstract

Undoubtedly, the detection of peripheral objects and pedestrians while driving is an important visual task. However, there are few data that describe the impact of parameters such as headlamp illumination, peripheral angle and target reflectance upon the speed and accuracy with which one can detect peripheral targets. The present paper outlines a framework for the development of a model that predicts reaction times and detection percentages to small targets of varying reflectance, and located at various positions in the field of view. The preliminary model closely matches data from independently-performed field studies using halogen and high intensity discharge headlamp sets having illumination characteristics that conform to North American and European requirements for headlamp beam patterns. The modeling approach discussed in the paper allows characteristics such as the effective field of view to be described. Further, the approach could be extended to incorporate driver age, target size, visual clutter, spectral power distribution, glare and ambient roadway illumination into the model predictions. Such a model could serve as a useful complement to existing models of on-axis (foveal) visual performance in driving contexts

Item Type:Conference Paper
Keywords:headlamp illumination, peripheral vision, reaction times
Subjects:Psychology > Psychophysics
ID Code:2548
Deposited By:Bullough, Dr. John D.
Deposited On:22 Oct 2002
Last Modified:11 Mar 2011 08:55

References in Article

Select the SEEK icon to attempt to find the referenced article. If it does not appear to be in cogprints you will be forwarded to the paracite service. Poorly formated references will probably not work.

1. Van Derlofske J., J. D. Bullough, and C. M. Hunter. Evaluation of High-Intensity Discharge Automotive

Forward Lighting. In Lighting Technology Developments for Automobiles, SAE, Warrendale, Pa., 2001, pp. 1-7.

2. Van Derlofske J., J. D. Bullough, and C. M. Hunter. Visual Benefits of High-Intensity Discharge Automotive

Forward Lighting. In Advanced Lighting Technology for Vehicles, SAE, Warrendale, Pa., 2002, pp. 51-56.

3. He, Y., M. S. Rea, A. Bierman, and J. Bullough. Evaluating Light Source Efficacy Under Mesopic Conditions

Using Reaction Times. Journal of the Illuminating Engineering Society, Vol. 26, No. 1, 1997, pp. 125-138.

4. Vaughan, P. G., L. D. Costa, and L. Gilden. The Functional Relation of Visual Evoked Response and Reaction

Time to Stimulus Intensity. Vision Research, Vol. 6, 1966, pp. 645-656.

5. Bullough, J. D., P. R. Boyce, A. Bierman, K. M. Conway, K. Huang, C. P. O'Rourke, C. M. Hunter, and A.

Nakata. Response to Simulated Traffic Signals Using Light-Emitting Diode and Incandescent Sources. In

Transportation Research Record 1724, TRB, National Research Council, Washington, D.C., 2000, pp. 39-46.

6. Boyce, P. R. Visual Inspection. In Human Factors in Lighting, Macmillan, New York, N.Y., 1981, pp. 147-169.

7. Lingard, R., and M. S. Rea. Off-Axis Detection at Mesopic Light Levels in a Driving Context. Journal of the

Illuminating Engineering Society, Vol. 31, No. 1, 2002, pp. 33-39.

8. Smith, J. A., and F. L. Dimmick. The Parameters of Scotopic Sensitivity: 1. The Effect of Size. Medical

Research Laboratory Report Number 174, Vol. 10, 1951, pp. 56-75.

9. Wolf, E. Studies on the Shrinkage of the Visual Field with Age. In Highway Research Record 164, HRB,

National Research Council, Washington, D.C., 1967, pp. 1-7

Metadata

Repository Staff Only: item control page