Investigation of Highway Lighting, HR-154, 1976

(1976) Investigation of Highway Lighting, HR-154, 1976. Transportation, Department of

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Abstract

The Iowa State Highway Commission initiated this research to evaluate a new lowering device for tower luminaires and a new concept of tower luminaire light distribution. Lighting at the West interchange of I-80, I-35, and I-235 in Polk County was also designated as an FHWA experimental project. As highway lighting has become more widely used, highway officials recognized the increasing importance of reducing safety hazards and improving aesthetic appearance of lighting installations. Also, lighting construction, energy, and maintenance costs were absorbing a larger share of the maintenance budget. A search began for a method of lighting whereby the fixed objects by the roadside could be eliminated or reduced in number, the costs could be reduced and the quality of lighting improved over existing methods. Lack of design data in this area illustrated the need for research.

Item Type: Departmental Report
Keywords: Aesthetics, Brightness, Construction, Costs, Glare, Highway safety, Installation, Luminaires, Maintenance management, Mathematical analysis, Street lighting
Subjects: Transportation
Transportation > Roads and highways
Transportation > Traffic safety
Transportation > Design and Construction
Transportation > Economics, finance, and taxes
Transportation > Maintenance and preservation
ID Code: 19628
Deposited By: Iowa DOT Library
Deposited On: 01 Jun 2015 15:06
Last Modified: 01 Jun 2015 15:06
URI: http://publications.iowa.gov/id/eprint/19628