Sep 18, 2018

Parking Lot Lighting Research Project

Final Report Published 2019

Measure and Report Luminaire Dirt Depreciation (LDD) in Led Luminaires for Street and Roadway Lighting Applications

Collaborating Funders: Virginia Tech Transportation Institute

Principal Investigator: Center for Infrastructure-Based Safety Systems, Virginia Tech Transportation Institute

Objectives: The primary objective of this research was to determine LDD for various types of LED luminaires in the field.  This research sought to characterize LED luminaire performance for various luminaire optics types, luminaire materials, luminaire IP ratings, and luminaire installation environments.

Final Report Published 2016

ANSI/ASHRAE/IES Standard 90.1: Lighting Computer Modeling Project

Collaborating Funders: ASHRAE, BC Hydro, IALD

Principal Investigator: AES Engineering

Objectives: This project supports the development of the Lighting Power Density (LPD) limits in the ANSI/ASHRAE/IES 90.1 Standard that form a significant part of the basis for most of the building energy code lighting requirements across the United States. Project tasks will support the work of the 90.1 Lighting Subcommittee (LSC) by providing computer modeling that parallels the current Excel models used in Lighting Power Density (LPD) development. Computer modeling will help improve the accuracy and applicability of the LPD values which in turn will strengthen the effectiveness of the Standard and other nationally applied energy codes and standards.

Press Release