摘要: |
The New Jersey Department Of Transportation (NJDOT) has an increasing concern that the quality and energy use for roadway lighting is outdated. The current lamps and energy usage is based on old practices and technologies. To research the state-of-the-art, NJDOT has contracted Rutgers/Center for Advanced Infrastructure and Transportation (CAIT). The main issues to be addressed include: 1) Introduce the existing and latest technologies in roadway lighting, and evaluate the current and proposed alternatives (taking into consideration illumination, visibility, maintenance, spectral power distribution, lumen depreciation, mean life, and color rendering). In addition, the research team is to provide NJDOT with the field verification on two key issues: visibility and color rendering, which are implemented on Sodium and white light sources. 2) Present the life cycle cost analysis on the introduced technologies and compare them to current lamps used in street lighting (High Pressure Sodium), with the proposed alternatives. Thus, the study will provide not only the most cost effective alternative to using High Pressure Sodium in roadway lighting, but also the most practical. |