Visual Performance and Safety Benefits of Adaptive Driving Beam Headlighting Systems

Bullough, John D.; Rensselaer Polytechnic Institute. Lighting Research Center

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Visual Performance and Safety Benefits of Adaptive Driving Beam Headlighting Systems

2014-05-01
By Bullough, John D.

English

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Details:

Creators:

Bullough, John D.
Corporate Creators:

Rensselaer Polytechnic Institute. Lighting Research Center
Corporate Contributors:

Transportation Lighting Alliance
Subject/TRT Terms:

[+]

Adaptive Control Glare Headlamps Highways Highway Safety Nighttime Crashes Safety And Human Factors Vehicles And Equipment Visibility
Publication/ Report Number:

TLA 2014-01
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

01603529
Corporate Publisher:

Rensselaer Polytechnic Institute. Lighting Research Center
Abstract:

Current standards for vehicle headlighting systems specify two distinct headlight beam patterns: a low beam when driving in the presence of other nearby vehicles, and a high beam when there is not a concern for producing glare to other drivers. Adaptive technologies such as curve/bending headlight systems with steerable or swiveling headlights may contribute to increments in safety according to the Highway Loss Data Institute, but isolating the effects of lighting among other factors can be very difficult. Recent analyses suggest that visual performance improvements from adaptive curve headlighting systems might contribute to reducing nighttime crashes along curves by 2%-3%. More advanced systems such as adaptive driving beam (ADB) systems that reduce high-beam headlamp intensity in the direction of oncoming and preceding drivers are not currently permitted in the U.S. The purpose of this study is to analyze visual performance benefits and to quantify the potential for nighttime crash reductions associated with ADB headlighting systems. Before ADB systems could be allowed on roads in the U.S., it is important to have information describing their potential for nighttime crash reductions. The results from the present analyses could help inform discussions about the potential safety impacts of ADB headlighting systems in the U.S.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:c06f29972b80b7a59af8c5b049392cc6abe93ca9b80528f3215c8b74a7edd26a
Download URL:

https://rosap.ntl.bts.gov/view/dot/38679/dot_38679_DS1.pdf
File Type:

[PDF-637.15 KB]