ILLUMINATION DESIGN FROM AFROM A

TXDOT PERSPECTIVEAlan McNeil, P.E.

Transportation Operations, Dallas Districtp p

TexITE Greater Dallas & Ft. Worth Sections Annual Joint Meeting 7/15/2016

Overview

Basic Types of Roadway Lighting11

Roadway Elements Subject to Illumination22

33 Common Pole Types

Common Fixture Types

33

44

Reference Materials & Standards55

Illumination Design

Wire Theft Solutions

66

77

2

Basic Types of Roadway LightingSafety (Freeways)11

Typically Requested by Cities on Roadway Reconstruction Jobs

Continuous (Freeways)22

Typically Requested by Cities on Roadway Reconstruction Jobs

Warranted, Funded, Operated, and Maintained by TxDOT

Typically Requested by Cities on Various Types of Roadway Jobs

Warranted & Funded by TxDOT, Operated & Maintained by City

Continuous (Arterials)33

Approved by TxDOT, Funded, Operated, & Maintained by City

Amenities44

Approved by TxDOT Funded Operated & Maintained by City

3

Approved by TxDOT, Funded, Operated, & Maintained by City

Roadway Infrastructure Elements Subject to Lighting

11 Freeway Main Lanes

Arterial Streets / Highways

11

22

Intersections & Interchanges33

Freeway Ramps & Direct Connectors44

55 Ramp Gores and Acceleration / Deceleration Lanes

Underpasses & Overpasses

55

66

4

Common Pole TypesConventional (30’ - 50’ Poles with Single or Dual Mast Arms)11

Transformer Base (Breakaway)

Shoe Base (Bridges and Retaining Walls)

Transformer Base (Breakaway)

Oval Base (Concrete Safety Barrier)

High Mast (100’ – 175’ Towers)22

S i T S (Ci l ) Li h PSymmetric Type S (Circular) Light Pattern

Asymmetric Type A or B (Oval) Light Pattern

Need FAA Approval & Core Borings

Decorative & Ornamental33

5

Various Non-Standard Designs to Meet City Aesthetics

Example FAA Aeronautical Studyp y

6

Example Core Boring Logsp g g

7

Common Fixture TypesHPS (High Pressure Sodium)11

150W (Underpasses)150W (Underpasses)

250W (Ramp & Intersection Safety Lighting)

400W (Freeway Main Lanes & High Mast Rings)

LED22

( y g g )

33

Specification Calls For HPS Equivalents

MH (Metal Halide) 33

Typically Used on City Arterials

8

Being Replaced by LED’s

Reference Materials & Standards

TxDOT Highway Illumination Manual (2003)11

AASHTO Roadway Lighting Design Guide (2005)22

NEC (2014) 33

TxDOT Standards44

ED ( 1 – 12 ) - 14

RIP (1 – 4)–11, RID (LUM1 - 2)–07, RID (UP)–14, RID (FND)-11

HMID (1 – 9)–03, HMIP (1 - 2)–98, HMIF (1 - 2)–98

BL (1 2) RW (LB) (1 2) CSB (4) 10 SSCB (4) 10

9

BL (1 - 2), RW (LB) (1 - 2), CSB (4)–10, SSCB (4) - 10

Lighting Reference Manualsg g

10

Illumination DesignConventional Poles – Follow TxDOT Pole Placements & Spacings11

Arterial Street Medians – 30’ Poles, 5’ Min. Width Curbed, 45 mph Max.

High Mast Poles – Use AGi32 with TxDOT IES Photometrics for Placements

22

33 High Mast Poles Use AGi32 with TxDOT IES Photometrics for Placements

Clear Zone for High Mast Poles – Use MBGF or Locate Behind Rail or Walls44

Elevation Details for Underpass Lighting55

Services – Generally 240 / 480 Single Phase Overhead or Underground66

11

Voltage Drop Calculations – 8% for HPS or LED at 480V77

Illumination Design Plan RequirementsShow Power Sources, Service Locations, & Electrical Service Data Chart

Sh P l i h L i l Id ifi i S (i A 1 1A 1 )

11

22 Show Poles with Logical Identification System (i.e. A-1, 1A-1, etc)

Show Ground Boxes at 500’ Maximum Spacings

22

33

Show Conduits with Consistent Numbering System44

55 Show Conduit and Conductor Run Table

Show Pole / Fixture Chart with All Pertinent Data

55

66

Show Summary of All Bid Item Quantities on a Per Sheet Basis77

12

Good Quality Assurance Checks (Provide Voltage Drop Calculations)88

Example Safety Lighting Planp y g g

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Example Safety Lighting Planp y g g

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Example Safety Lighting Planp y g g

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Example High Mast Lighting Planp g g g

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Example High Mast Lighting Planp g g g

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Example Electrical Service Data Chartp

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Example Underpass Lighting Detailp p g g

19

Wire Theft Solutions

Polyurethane Foam in Ground Boxes and Conduits11

Buried Ground Boxes for ITS Power22

Concrete Caps over Ground Boxes33

Lockable Ground Box Lids4 4

Aluminum Wire (NEC Revision coming in 2017)55

20