IES RP 8 2014

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ANSI/IES RP-8-14: Roadway Lighting

Published By	Publication Date	Number of Pages
IES	2014	58

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Description

The primary purpose of this Standard Practice is to serve as the basis for design of fixed lighting for roadways, streets, adjacent bikeways, and pedestrian ways. The Standard Practice deals entirely with lighting design and does not give advice on construction. Its primary purpose is to provide recommended practices for designing new continuous lighting systems for roadways and streets. It is not intended to be applied to existing lighting systems until such systems are completely redesigned. It has been prepared to advance the art, science, and practice of roadway and street lighting in North America. Roadway and street lighting includes pedestrian and bikeway lighting when it is associated with the public right-of-way. In those circumstances where there is any doubt as to whether the provision of new or updated roadway lighting would provide a benefit at a particular location, a decision should be made based on a study of local conditions. Once a decision has been made to provide lighting, this publication provides the basis for designing an appropriate system. The AASHTO Lighting Design Guide provides guidance for warranting.

PDF Catalog

PDF Pages	PDF Title
1	Cover
3	Copyright
4	IES Roadway Lighting Committee Members
6	Contents
8	FOREWORD 1.0 INTRODUCTION 1.1 Purpose of this Standard Practice 1.2 Purpose of Roadway and Street Lighting
9	1.3 Roadway Lighting and Street Lighting 1.4 Related Documents
10	2.0 CLASSIFICATIONS AND DEFINITIONS 2.1 Roadway, Pedestrian Walkway, andBikeway Classifications
11	2.2 Pedestrian Conflict Area Classifications 2.3 Pavement Classifications
12	2.4 Luminaire Classification System (LCS)
13	3.0 DESIGN CONSIDERATIONS 3.1 Design Issues 3.2 Appearance and Scale 3.3 Visual Task 3.4 Integration with Non-Lighting Elements
14	3.5 Vertical Surface Illumination 3.6 Glare and Sky-Glow Issues
15	3.7 Impact of Headlights 3.8 Impact of Trees on Lighting 3.9 Spectral Considerations
18	4.0 LIGHTING RECOMMENDATIONS
19	4.1 Roadway Lighting 4.2 Street Lighting
21	5.0 OTHER AREAS AND CONSIDERATIONS 5.1 Intersections
22	5.2 High Mast Lighting
24	5.3 Crosswalks
25	5.4 Adaptive Lighting 5.5 Transition Lighting 5.6. Grade Intersections
26	5.7 Isolated intersections and interchanges(Partial Lighting)
27	5.8 CURVES AND STEEP GRADES
28	5.9 Underpasses and Overpasses
29	5.10 Railroad Grade Crossings
30	5.11 Trees adjacent to Roadways
31	5.12 Roundabouts
32	5.13 Toll Plazas
34	ANNEX A – CALCULATION ANDMEASUREMENTS A.1 Introduction A.2 Assumed and Standard Conditions
35	A.3 Accuracy of Calculations A.4 Calculation of Illuminance and PavementLuminance A.5 Calculating Target Luminance A.6 r-Tables
36	A.7 Calculation of Veiling Luminance A.8 Calculation of Target Visibility
39	A.9 Selection of a Grid and Luminaire LocationGeometry for Calculation or Measurement
41	A.10 Methods of Field Measurement A.11 Light Loss Factor (LLF)
43	A.12 Determination of LLF for ExistingInstallation
44	ANNEX B – GLARE B1 Introduction B.2 Disability Glare
45	B.3 Discomfort Glare
46	ANNEX C – GLOSSARY
51	ANNEX D – REFERENCES
53	ANNEX E – CLASSIFICATION OF LUMINAIRELIGHT DISTRIBUTION E.1. Introduction
55	E2. Lateral light distributions E3. Transverse light distributions
57	E4. Control of distribution above maximum candle power E5. Variations and comments