Enhanced Night Visibility Series, Volume VI: Phase II—Study 4: Visual Performance During Nighttime Driving in Fog

Blanco, Myra; Hankey, Jonathan M.; Virginia Tech Transportation Institute

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Enhanced Night Visibility Series, Volume VI: Phase II—Study 4: Visual Performance During Nighttime Driving in Fog

2005-12-01
By Blanco, Myra ; Hankey, Jonathan M.

[PDF-1.28 MB]

English

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Details:

Creators:

Blanco, Myra ; Hankey, Jonathan M.

Blanco, Myra ; Hankey, Jonathan M. Less -
Corporate Creators:

Virginia Tech Transportation Institute
Contributors:

Andersen, Carl K.
Corporate Contributors:

United States. Federal Highway Administration. Office of Safety Research and Development ; Turner-Fairbank Highway Research Center

United States. Federal Highway Administration. Office of Safety Research and Development ; Turner-Fairbank Highway Research Center Less -
Subject/TRT Terms:

[+]

Night Visibility Night Vision Traffic Safety
Publication/ Report Number:

FHWA-HRT-04-137
Resource Type:

Tech Report
Geographical Coverage:

United States
Contracting Officer:

Andersen, Carl
Corporate Publisher:

United States. Federal Highway Administration. Office of Safety Research and Development
Abstract:

Phase II—Study 4 was part of the Enhanced Night Visibility project, a larger research effort investigating drivers’ visual performance during nighttime driving. Study 4 helped expand the knowledge of how current vision enhancement systems can affect detection and recognition of different types of objects during adverse weather, specifically for fog conditions. Thirty participants were involved in the study. A 6 by 3 mixed factorial design was used to investigate the effects of different types of vision enhancement systems and driver’s age on detection and recognition of a pedestrian on the roadway. Subjective evaluations also were obtained for the different vision enhancement systems.

The analysis based on objective and subjective results revealed that the infrared thermal imaging system is the best configuration for detecting pedestrians in fog conditions. Halogen headlamps supplemented with ultraviolet A (UV–A) was a better configuration for detecting pedestrians than the halogen and high intensity discharge (HID) headlamps alone; however, the UV–A technology does not represent a dramatic improvement over the halogen and HID headlamps used in this research.
Format:

PDF
Funding:

DTFH61-98-C-00049
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:ef0404b45a59d8cdce34143e674b0af7e892d4bd5c2faaed8a6e0c9bdba3a305
Download URL:

https://rosap.ntl.bts.gov/view/dot/38058/dot_38058_DS1.pdf
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Enhanced Night Visibility Series, Volume VI: Phase II—Study 4: Visual Performance During Nighttime Driving in Fog

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