Technical Summary of Research into
Unit Power Density and Unit Uplight Density

by David M. Keith

Table of Contents

Table of Tables

Table of Figures

Introduction

Unit Power Density (UPD)

Unit Uplight Density (UUD)

Procedure

Calculation Procedure: Overview

Calculation Procedure: One

Calculation Procedure: Two

Initial, Incremental and Final Values for Optimization Procedure

Design Criteria

Luminaire and Lamp Data

Photometric Files

Roadway and Area Classifications, Roadway Widths and Surface

Calculations

Calculations: Different Phases

Calculations: Illuminance and Luminance

Calculations: Zero Overhang

Calculations: HPS LLF

Calculations: Major High

Calculations: UPD and UUD

Calculations: Groups, "Top 5" and "Top 10"

Results

Results: Optimization, UPD and UUD

Results: Design Criteria

Results: Illuminance and Luminance

Results: Cutoff Classifications

Conclusions

References

Table of Tables

Table 1: Criteria from ANSI/IESNA RP-8-00

Table 2: Luminaire and Lamp Data

Table 3: Photometric Files, Preliminary

Table 4: Photometric Files, Intermediate and Advanced

Table 5: Photometric Files for Uplight Calculations, Intermediate and Advanced

Table 6: Roadway and Lamp Wattage Matrix

Table 7: Counts of Luminaires, Groups and Runs for Unit Power Density (UPD) Calculations

Table 8: Counts of Luminaires, Groups and Runs for Unit Uplight Density (UUD) Calculations

Table 9: Preliminary Phase Results Summary for Systems with Lowest UPD Values

Table 10: Averaged "Top 5" UPD Values For "Any Distribution Allowed"

Table 11: Averaged "Top 5" UPD Values For "Full Cutoff Only"

Table of Figures

Figure 1: Lavg, STV and UUD values by UPD values for Different Photometric Files

Figure 2: Preliminary Phase UUD and UPD values for Collector 3 lane road with 250W HPS

Figure 3: UPD and Average Luminance for Collector Two Lane with 250 HPS (C07s250H)

Figure 4: UPD and Average Luminance for Collector Two Lane with 250 MH (C07s250M)

Figure 5: Intermediate Phase Results for Both, Illuminance & Luminance, Coll. 2 lanes 250W MH

Figure 6: Intermediate Phase Results for Both, Illuminance & Luminance, Major 6 lanes 250W MH

Figure 7: Percentage Differences in "Top 5" UPD from "Any Distribution Allowed" to "Full Cutoff Only"

to Alliance for Lighting Information
to Marshall Design, Inc.

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