Field Test Evaluation of Rearview Mirror Systems for Commercial Vehicles

Smith, R. L.; Mulholland, M. U.; Burger, W. J.

i

Field Test Evaluation of Rearview Mirror Systems for Commercial Vehicles

1985-09-01
By Smith, R. L. ; Mulholland, M. U. ; Burger, W. J.

File Language:

English

Details

Creators:

Smith, R. L. ; Mulholland, M. U. ; Burger, W. J.
Corporate Creators:

Vector Enterprises, Inc.
Corporate Publisher:

United States. Department of Transportation. National Highway Traffic Safety Administration
Corporate Contributors:

United States. Department of Transportation. National Highway Traffic Safety Administration
Subject/TRT Terms:
Publication/ Report Number:

DOT HS 806 948
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Description:

This study was a two-year field evaluation of two experimental rearview mirror systems. One system was a 40 inch radius of curvature convex mirror having a width of 10 inches and a height of 6.5 inches. The second system was a dual plane/convex mirror mounted one above the other. The convex mirror had a curvature of 21 inches in radius and both mirrors were 6.5 inches in width and 6.0 inches in height. Each experimental system was installed on nearly 2,000 Bell Telephone Company vans, and in terms of accident rates, subsequently compared to a control group of Bell vans having conventional, original equipment manufacture (plane) mirror systems varying in widths from 5.0 to 7.0 inches and in heights from 7.0 to 9.0 inches. The vans accumulated a total of 91,633,662 miles within a region of seven states. The results indicated a statistically significant 17.6 percent reduction in accident rate in the single convex mirror group as compared to the control group. The dual plane/convex mirror group, however, yielded essentially the same accident rate as the control group. It is concluded that accident rate reduction and cost-benefit analyses strongly support the installation of the single convex mirror system on vans at manufacture.
Format:

PDF
Funding:

DTNH22-81-C-07337
Download URL:

https://rosap.ntl.bts.gov/view/dot/94326/dot_94326_DS1.pdf
File Type:

[PDF - 2.77 MB]
Collection(s):

NHTSA - Behavioral Safety Research
Main Document Checksum:

urn:sha-512:be80c39353e91df93e572e4b81b3c50678fa3a29118a0aa5d5a86f34b5ef94a89cb7d18511327c992d4404e000ceec82810e527d169199a2a386e41d996822ec

File Language:

English

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