An Economic Study of Three Light Sources for Roadway Lighting

Abstract

There is much discussion today of the relative merits of the various light sources available for roadway lighting. Certain sources have particular benefits, but questions are raised regarding the economics of using sources other than High Pressure Sodium. The paper evaluates cost issues related to lamp type. Initial costs are addressed on a total cost per mile basis, influenced by pole spacing. Operating costs include power and maintenance costs. All are evaluated and summarized on the basis of meeting identical IESNA performance recommendations.