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Roadway Lighting Design Manual

May 2006

Mn/DOT Roadway Lighting Design Manual

TABLE OF CONTENTS
1.
1.1 1.2 1.2.1 1.2.2 1.3 1.4 1.4.1 1.4.2 1.4.3 1.4.4 1.4.5 1.4.6 1.4.7 1.4.8 1.4.9 1.5 1.5.1 1.5.2 1.5.3 1.5.4 1.6

LIGHTING BASICS .................................................................................................................1-1
Definition ofTerms................................................................................................................................ 1-1 Purpose of Roadway Lighting .............................................................................................................. 1-2 Traffic EngineeringObjectives........................................................................................................ 1-2 Other Objectives.............................................................................................................................. 1-2 Visibility of Objects................................................................................................................................ 1-2 Types of Lighting SystemConfigurations............................................................................................ 1-3 Continuous Freeway Lighting ......................................................................................................... 1-3 Partial Interchange Lighting ............................................................................................................ 1-3 Complete InterchangeLighting....................................................................................................... 1-3 Underpass Lighting ......................................................................................................................... 1-3 Other Streets and Highways Lighting............................................................................................. 1-4 BridgeLighting................................................................................................................................. 1-4 Roadways with Median Barriers Lighting ....................................................................................... 1-4 Intersection Lighting ........................................................................................................................ 1-4Roundabout Lighting ....................................................................................................................... 1-5 Lighting Warrants.................................................................................................................................. 1-5 Continuous Freeway Lighting......................................................................................................... 1-6 Complete Interchange Lighting....................................................................................................... 1-6 Partial Interchange Lighting ............................................................................................................ 1-6 Non-Freeway Lighting..................................................................................................................... 1-7 Minnesota’s Energy Law ...................................................................................................................... 1-8

2.
2.1 2.1.1 2.1.2 2.1.3 2.2 2.2.1 2.2.2 2.2.3 2.2.4 2.3 2.3.1 2.3.2 2.3.3 2.3.4 2.4 2.4.1 2.4.2 2.4.3 2.4.4

LIGHTING EQUIPMENT.........................................................................................................2-0
Luminaires............................................................................................................................................. 2-0 Optical System................................................................................................................................. 2-3 Electrical System...
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