6.5 LW Red-line of Lighting Report

331 Pages·2014·27.43 MB·English

Appendix D

Lighting Study
.
ENVIRONMENTAL IMPACT LIGHTING STUDY

THE ARCHER SCHOOL FOR GIRLS
Archer Forward: Campus Preservation and Improvement Plan

Francis Krahe & Associates, Inc.
Architectural Lighting Design
304 South Broadway, Suite 500
Los Angeles, California 90013

Phone [phone]
Fax [phone]

Project: AS000

July 2013

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The Archer School for Girls July 2013
TABLE OF CONTENTS
1 INTRODUCTION .................................................................................................................................. 8
1.1 Summary of Study Organization ................................................................................................... 8
1.2 Outline of Study ............................................................................................................................. 8
1.3 Project Description ........................................................................................................................ 8
1.3.1 New Facilities ........................................................................................................................ 8
1.3.2 Lighting Strategy ................................................................................................................. 12
1.3.3 Lighting Techniques and Stipulations within the Project ..................................................... 13
1.4 Summary of Methodology ........................................................................................................... 15
1.4.1 Field Study .......................................................................................................................... 16
1.4.2 Future Impacts of the Project .............................................................................................. 16
1.4.3 Existing Regulations and Best Practices ............................................................................ 17
a) Existing Regulations ................................................................................................................ 17
b) Recommended Practices ........................................................................................................ 18
1.5 Lighting Concepts Overview ....................................................................................................... 19
a) Luminance, Visual Perception and Light Adaptation .............................................................. 19
b) Light Pollution .......................................................................................................................... 20
1.6 Significance Thresholds .............................................................................................................. 21
1.6.1 State of California CEQA Threshold ................................................................................... 21
1.6.2 City of Los Angeles CEQA Thresholds Guide .................................................................... 21
1.6.3 Criteria for Significance of Impacts ..................................................................................... 21
1.7 Summary of Study Conclusions .................................................................................................. 22
1.7.1 Summary of Illuminance Conclusions: ................................................................................ 22
1.7.2 Summary of Contrast Conclusions:..................................................................................... 24
2 GLOSSARY OF LIGHTING TERMINOLOGY .................................................................................... 28
3 EXISTING LIGHTING CONDITIONS ................................................................................................. 37
3.1 Introduction .................................................................................................................................. 37
3.1.1 Criteria for Site Locations .................................................................................................... 37
3.1.2 Receptor Site Locations ...................................................................................................... 38
3.2 Criteria ......................................................................................................................................... 42
3.3 Analysis of Survey Data .............................................................................................................. 43
3.4 Existing Conditions, Observations from Receptor Sites ............................................................. 46
3.4.1 Receptor Site A ................................................................................................................... 46
3.4.2 Receptor Site B ................................................................................................................... 50
3.4.3 Receptor Site C ................................................................................................................... 54
3.4.4 Receptor Site C-1 ................................................................................................................ 58
3.4.5 Receptor Site D ................................................................................................................... 62
3.4.6 Receptor Site D-1 ................................................................................................................ 66
3.4.7 Receptor Site E ................................................................................................................... 70
3.4.8 Receptor Site F ................................................................................................................... 74
3.4.9 Receptor Site G ................................................................................................................... 78
3.4.10 Receptor Site H ................................................................................................................... 82
3.4.11 Receptor Site J .................................................................................................................... 86
4 ANALYSIS OF PROJECT LIGHTING IMPACTS ............................................................................... 90
4.1 Introduction .................................................................................................................................. 90
4.2 Modeling Lighting Impacts .......................................................................................................... 90
4.3 Project Improvements Computer Model Data ............................................................................. 92
4.3.1 Main Building ....................................................................................................................... 93
4.3.2 North Wing Renovation ....................................................................................................... 95
4.3.3 Multipurpose Facility, Visual Arts Center, Performing Arts Center ..................................... 97
4.3.4 Underground Parking Structure ........................................................................................ 100

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4.3.5 Athletic Fields for Soccer and Softball .............................................................................. 103
4.3.6 Athletic Fields Lighting ...................................................................................................... 104
4.3.7 Exterior Lightings: Courtyards, Landscape Plazas, Pedestrian Walkways....................... 109
4.3.8 Lighting Guidelines Employed in Model ............................................................................ 113
a) Exterior Lighting .................................................................................................................... 113
b) Athletic Lighting ..................................................................................................................... 113
c) Site Lighting ........................................................................................................................... 113
d) Parking Lot and Parking Structure Lighting .......................................................................... 113
e) Building Mounted Lighting ..................................................................................................... 113
f) Interior Architectural Lighting ................................................................................................ 114
g) Site Design ............................................................................................................................ 114
4.3.9 Lighting Techniques relating to Light Pollution: Light Trespass, Glare and Skyglow ....... 114
4.4 Summary of Calculated Future Conditions ............................................................................... 116
4.4.1 Future Conditions at Receptor Site A ............................................................................... 122
4.4.2 Future Conditions at Receptor Site B ............................................................................... 125
4.4.3 Future Conditions at Receptor Site C ............................................................................... 127
4.4.4 Future Conditions at Receptor Site C-1 ............................................................................ 130
4.4.5 Future Conditions at Receptor Site D ............................................................................... 133
4.4.6 Future Conditions at Receptor Site D-1 ............................................................................ 138
4.4.7 Future Conditions at Receptor Site E ............................................................................... 141
4.4.8 Future Conditions at Receptor Site F ................................................................................ 146
4.4.9 Future Conditions at Receptor Site G ............................................................................... 151
4.4.10 Future Conditions at Receptor Site H ............................................................................... 154
4.4.11 Future Conditions at Receptor Site J ................................................................................ 157
4.5 Summary of Analysis Findings .................................................................................................. 162
4.5.1 Existing Conditions ............................................................................................................ 162
4.5.2 Future Conditions Computer Model Comparison .............................................................. 165
a) Summary Illuminance Findings ............................................................................................. 165
b) Contrast ................................................................................................................................. 167

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LIST OF FIGURES
Figure 1: Athletic Fields Lighting, Conceptual Illustration, Mounting Height of 40 feet vs. 70 feet. ............ 15
Figure 2: IES TM-15-07 Appendix BUG rating thresholds, Tables A-1 and A-2 ......................................... 29
Figure 3: IES TM-15-07 Appendix BUG rating thresholds, Table A-3 ........................................................ 30
Figure 4: IES TM-15-07 Appendix BUG rating example ............................................................................. 31
Figure 5: Defined Directional Light Output Configurations ......................................................................... 33
Figure 6: IESNA Luminaire Cutoff Classifications, See also IES TM-15-07 BUG Ratings
Addendum ................................................................................................................................. 34
Figure 7: Lighting Units ............................................................................................................................... 35
Figure 8: Receptor Site Locations ............................................................................................................... 38
Figure 9: Receptor Site A, Reference Photograph ..................................................................................... 46
Figure 10:Receptor Site A, Nighttime View ................................................................................................. 46
Figure 11: Measurement grid for Luminance Values at Receptor Site A ................................................... 47
Figure 12: Map of Receptor Site A .............................................................................................................. 47
Figure 13: Receptor Site B, Reference Photograph ................................................................................... 50
Figure 14: Receptor Site B, Nighttime View ................................................................................................ 50
Figure 15: Measurement grid for Luminance Values at Receptor Site B ................................................... 51
Figure 16: Map of Receptor Site B .............................................................................................................. 51
Figure 17: Receptor Site C, Reference Photograph ................................................................................... 54
Figure 18: Receptor Site C, Nighttime View ............................................................................................... 54
Figure 19: Measurement grid for Luminance Values at Receptor Site C ................................................... 54
Figure 20: Map of Receptor Site C ............................................................................................................. 55
Figure 21: Receptor Site C-1, Reference Photograph ................................................................................ 58
Figure 22: Receptor Site C-1, Nighttime View ............................................................................................ 58
Figure 23: Measurement grid for Luminance Values at Receptor Site C-1 ................................................ 59
Figure 24: Map of Receptor Site C-1 .......................................................................................................... 59
Figure 25: Receptor Site D, Reference Photograph ................................................................................... 62
Figure 26: Receptor Site D, Nighttime View ............................................................................................... 62
Figure 27: Measurement grid for Luminance Values at Receptor Site D ................................................... 63
Figure 28: Map of Receptor Site D ............................................................................................................. 63
Figure 29: Receptor Site D-1, Reference Photograph ................................................................................ 66
Figure 30: Receptor Site D-1, Nighttime View ............................................................................................ 66
Figure 31: Measurement grid for Luminance Values at Receptor Site D-1 ................................................ 67
Figure 32: Map of Receptor Site D-1 .......................................................................................................... 67
Figure 33: Receptor Site E, Reference Photograph ................................................................................... 70
Figure 34: Receptor Site E, Nighttime View ................................................................................................ 70
Figure 35: Measurement grid for Luminance Values at Receptor Site E ................................................... 71
Figure 36: Map of Receptor Site E .............................................................................................................. 71
Figure 37: Receptor Site F, Reference Photograph ................................................................................... 74
Figure 38: Receptor Site F, Nighttime View ................................................................................................ 74
Figure 39: Measurement grid for Luminance Values at Receptor Site F .................................................... 75
Figure 40: Map of Receptor Site F .............................................................................................................. 75
Figure 41: Receptor Site G, Reference Photograph ................................................................................... 78
Figure 42: Receptor Site G, Nighttime View ............................................................................................... 78
Figure 43: Measurement grid for Luminance Values at Receptor Site G ................................................... 78
Figure 44: Map of Receptor Site G ............................................................................................................. 79
Figure 45: Receptor Site H, Reference Photograph ................................................................................... 82
Figure 46: Receptor Site H, Nighttime View ............................................................................................... 83
Figure 47: Measurement grid for Luminance Values at Receptor Site H ................................................... 83
Figure 48: Map of Receptor Site H ............................................................................................................. 83
Figure 49: Receptor Site J, Reference Photograph .................................................................................... 86
Figure 50: Receptor Site J, Nighttime View ................................................................................................ 86
Figure 51: Measurement grid for Luminance Values at Receptor Site J .................................................... 87
Figure 52: Map of Receptor Site J .............................................................................................................. 87
Figure 53: Field of View for Computer Simulation ...................................................................................... 91

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Figure 54: Map of Project Area ................................................................................................................... 92
Figure 55: Modeled interior illuminance of Main Building with calculation points. ...................................... 95
Figure 56: Modeled interior illuminance of North Wing Renovation. .......................................................... 96
Figure 57: Modeled interior illuminance of Multipurpose Facility, large multi-use rooms. .......................... 98
Figure 58: Modeled interior illuminance of Multipurpose Facility, Ambulatory and open activity
areas .......................................................................................................................................... 98
Figure 59: Modeled interior illuminance of Aquatics Center, locker room locations. .................................. 99
Figure 60: Modeled interior illuminance of Performing Arts Center, Office and Dance Studio ................... 99
Figure 61: Modeled illuminance Underground Parking Structure – Northeast corner .............................. 101
Figure 62: Modeled illuminance North Garden ......................................................................................... 102
Figure 63: Modeled illuminance Underground Parking Structure – Southwest corner ............................. 102
Figure 64: Fixture Types SJ, SJ-1 and SJ-2 ............................................................................................. 105
Figure 65: Fixture Types SJ-3, SJ-4 and SJ-5 .......................................................................................... 106
Figure 66: Athletic Fields Lighting Pole Locations and Luminaires .......................................................... 107
Figure 67: Modeled illuminance of the Athletic Fields .............................................................................. 108
Figure 68: Modeled illuminance of the Exterior Walkways and Plazas around Performing Arts
Center ...................................................................................................................................... 111
Figure 69: Modeled illuminance of the Exterior Walkways/ Court of Leaders .......................................... 111
Figure 70: Modeled illuminance of the Exterior Walkways ....................................................................... 112
Figure 71: Modeled illuminance of the Exterior Walkways and Plazas around Visual Arts Center
and Aquatics Center ................................................................................................................ 112
Figure 72: Illustration of useful light vs. light pollution .............................................................................. 114
Figure 73: Field of View shown at Receptor Site A .................................................................................. 122
Figure 74: Field of View shown at Receptor Site B .................................................................................. 125
Figure 75: Field of View shown at Receptor Site C .................................................................................. 127
Figure 76: Field of View shown at Receptor Site C-1 ............................................................................... 130
Figure 77: Field of View shown at Receptor Site D .................................................................................. 133
Figure 78: Map of Sight Line Studies for Athletics Fields shows specific Luminaire locations and
Receptor Site D ....................................................................................................................... 136
Figure 79: View study of luminaire shows the shielding blocks the view of lamp. .................................... 137
Figure 80: View study from Receptor Site to Luminaire shows the shielding blocks the view of
lamp. ........................................................................................................................................ 137
Figure 81: Field of view shown at Receptor Site D-1 ................................................................................ 138
Figure 82: Field of View shown at Receptor Site E .................................................................................. 141
Figure 83: Map of Sight Line Studies for Athletics Fields shows specific Luminaire locations and
Receptor Site E. ...................................................................................................................... 144
Figure 84: View study of luminaire shows the shielding blocks the view of lamp. .................................... 145
Figure 85: View study from Receptor Site to Luminaire shows the shielding blocks the view of
lamp. ........................................................................................................................................ 145
Figure 86: Field of view shown at Receptor Site F, Facing East .............................................................. 146
Figure 87: Map of Sight Line Studies for Athletics Fields shows specific Luminaire locations and
Receptor Site F........................................................................................................................ 149
Figure 88: View study of luminaire shows the shielding blocks the view of lamp. .................................... 150
Figure 89: View study from Receptor Site to Luminaire shows the shielding blocks the view of
lamp. ........................................................................................................................................ 150
Figure 90: Field of View shown at Receptor Site G .................................................................................. 151
Figure 91: Field of View shown at Receptor Site H .................................................................................. 154
Figure 92: Field of View shown at Receptor Site J ................................................................................... 157
Figure 93: Map of Sight Line Studies for Athletics Fields shows specific Luminaire locations and
Receptor Site J ........................................................................................................................ 160
Figure 94: View study of luminaire shows the shielding blocks the view of lamp. .................................... 161
Figure 95: View study from Receptor Site to Luminaire shows the shielding blocks the view of
lamp. ........................................................................................................................................ 161

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LIST OF TABLES
Table 1: Summary Comparison of Measured and Calculated Illuminance Conditions .............................. 23
Table 2: Summary of Calculated Illuminance Values at Boundary of Project ............................................ 24
Table 3: Summary Comparison of Measured and Calculated Luminance Conditions ............................... 26
Table 4: Summary of Coverage for Existing and Project ............................................................................ 27
Table 5: Summary of Context for Existing and Project ............................................................................... 27
Table 6: Lighting Criteria ............................................................................................................................. 42
Table 7: Summary of Existing Luminance Data .......................................................................................... 44
Table 8: Summary of Existing Field Observation Conditions ...................................................................... 45
Table 9: Analysis of Existing Conditions at Receptor Site A ....................................................................... 48
Table 10: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site A ................. 48
Table 11: Existing Luminance Measurements at Receptor Site A.............................................................. 49
Table 12: Analysis of Existing Conditions at Receptor Site B ..................................................................... 52
Table 13: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site B ................. 52
Table 14: Existing Luminance Measurements at Receptor Site B.............................................................. 53
Table 15: Analysis of Existing Conditions at Site C .................................................................................... 56
Table 16: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site C ................. 57
Table 17: Existing Luminance Measurements at Receptor Site C ............................................................. 57
Table 18: Analysis of Existing Conditions at Site C-1 ................................................................................. 60
Table 19: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site C-1 ............. 61
Table 20: Existing Luminance Measurements at Receptor Site C-1 .......................................................... 61
Table 21: Analysis of Existing Conditions at Receptor Site D .................................................................... 64
Table 22: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site D ................. 64
Table 23: Existing Luminance Measurements at Receptor Site D ............................................................. 65
Table 24: Analysis of Existing Conditions at Site D-1 ................................................................................. 68
Table 25: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site D-1 ............. 69
Table 26: Existing Luminance Measurements at Receptor Site D-1 .......................................................... 69
Table 27: Analysis of Existing Conditions at Receptor Site E ..................................................................... 72
Table 28: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site E ................. 73
Table 29: Existing Luminance Measurements at Receptor Site E.............................................................. 73
Table 30: Analysis of Existing Conditions at Receptor Site F ..................................................................... 76
Table 31: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site F ................. 77
Table 32: Existing Luminance Measurements at Receptor Site F .............................................................. 77
Table 33: Analysis of Existing Conditions at Receptor Site G .................................................................... 80
Table 34: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site G ................ 80
Table 35: Existing Luminance Measurements at Receptor Site G ............................................................. 81
Table 36: Analysis of Existing Conditions at Receptor Site H .................................................................... 84
Table 37: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site H ................. 85
Table 38: Existing Luminance Measurements at Receptor Site H ............................................................. 85
Table 39: Analysis of Existing Conditions at Receptor Site J ..................................................................... 88
Table 40: Existing Contrast, Calculated Luminance Ratios (footLamberts) at Receptor Site J ................. 88
Table 41: Existing Luminance Measurements at Receptor Site J .............................................................. 89
Table 42: Typical classroom Interior Luminaire Schedule .......................................................................... 94
Table 43: Calculation Summary of Main Building ....................................................................................... 95
Table 44: Typical classroom Interior Luminaire Schedule .......................................................................... 96
Table 45: Calculation Summary of North Wing Renovation ....................................................................... 97
Table 46: Interior Luminaire Schedule ........................................................................................................ 97
Table 47: The Underground Parking Structure Exterior Luminaire Schedule .......................................... 100
Table 48: Calculation Summary of Underground Parking Structure ......................................................... 103
Table 49: Athletic Fields Luminaire Schedule ........................................................................................... 104
Table 50: Modeled illuminance of the Athletic Fields* .............................................................................. 108
Table 51: Exterior Luminaire Schedule ..................................................................................................... 110
Table 52: Summary of Calculated Illuminance Values at Receptor Sites ................................................ 116
Table 53: Summary of Calculated Illuminance values at Boundary of Project ......................................... 117
Table 54: Summary of Calculated Illuminance Values at Receptor Sites ................................................ 119

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Table 55: Summary of Coverage for Existing and Project ........................................................................ 120
Table 56: Summary of Context for Existing and Project ........................................................................... 120
Table 57: Visual Analysis of Future Conditions at Receptor Site A .......................................................... 123
Table 58: Calculation Results of Project at Receptor Site A with Athletic Fields Lighting On .................. 124
Table 59: Calculation Results of Project at Receptor Site A with Athletic Field Lighting Off .................... 124
Table 60: Visual Analysis of Future Conditions at Receptor Site B .......................................................... 125
Table 61: Calculations Results of Project at Receptor Site B with Athletic Fields Lighting On ................ 126
Table 62: Calculation Results of Project Receptor Site B with Athletic Fields Lighting Off ...................... 126
Table 63: Visual Analysis of Future Conditions at Site C ......................................................................... 128
Table 64: Calculations Results of Project at Receptor Site C with Athletic Fields Lighting On ................ 129
Table 65: Calculation Results of Project at Receptor Site C with Athletic Fields Lighting Off .................. 129
Table 66: Visual Analysis of Future Conditions at Site C-1 ...................................................................... 130
Table 67: Calculations Results of Project at Receptor Site C-1 with Athletic Fields Lighting On ............. 132
Table 68: Calculation Results of Project at Receptor Site C-1 with Athletic Fields Lighting Off ............... 132
Table 69: Visual Analysis of Future Conditions at Site D ......................................................................... 134
Table 70: Calculation Results of Project at Receptor Site D with Athletic Fields Lighting On .................. 135
Table 71: Calculation Results of Project at Receptor Site D with Athletic Fields Lighting Off .................. 135
Table 72: View Angle Analysis for Lamp Shielding for Receptor Site D ................................................... 137
Table 73: Visual Analysis of Future Conditions at Site D-1 ...................................................................... 138
Table 74: Calculations Results of Project at Receptor Site D-1 with Athletic Fields Lighting On ............. 140
Table 75: Calculation Results of Project at Receptor Site D-1 with Athletic Fields Lighting Off ............... 140
Table 76: Visual Analysis of Future Conditions at Site E .......................................................................... 141
Table 77: Calculation Results of Project at Receptor Site E with Athletic Fields Lighting On .................. 143
Table 78: Calculation Results of Project at Receptor Site E with Athletic Fields Lighting Off .................. 143
Table 79: View Angle Analysis for Lamp Shielding for Receptor Site E ................................................... 145
Table 80: Visual Analysis of Future Conditions at Receptor Site F .......................................................... 147
Table 81: Calculation Results of Project at Receptor Site F with Athletic Fields Lighting On .................. 148
Table 82: Calculation Results of Project at Receptor Site F with Athletic Fields Lighting Off .................. 148
Table 83: View Angle Analysis for Lamp Shielding for Receptor Site F ................................................... 150
Table 84: Visual Analysis of Future Conditions at Receptor Site G.......................................................... 152
Table 85: Calculations Results at Receptor Site G with Athletic Fields Lighting On ................................ 153
Table 86: Calculation Results of Project at Receptor Site G with Athletic Fields Lighting Off .................. 153
Table 87: Visual Analysis of Future Conditions at Receptor Site H .......................................................... 154
Table 88: Calculations Results at Receptor Site H with Athletic Fields Lighting On ................................ 156
Table 89: Calculation Results of Project at Receptor Site H with Athletic Fields Lighting Off .................. 156
Table 90: Visual Analysis of Future Conditions at Receptor Site J........................................................... 158
Table 91: Calculations Results at Receptor Site J with Athletic Fields Lighting On ................................. 159
Table 92: Calculation Results of Project at Receptor Site J with Athletic Fields Lighting Off ................... 159
Table 93: View Angle Analysis for Lamp Shielding for Receptor Site J ................................................... 161
Table 94: Summary of Existing Field Observation Conditions .................................................................. 163
Table 95: Summary of Existing Field Luminance Data ............................................................................. 164
Table 96: Summary Comparison of Measured and Calculated Illuminance Conditions .......................... 166
Table 97: Summary of Calculated Illuminance Values at Boundary of Project ........................................ 167
Table 98: Summary Comparison of Measured and Calculated Luminance Conditions ........................... 169
Table 99: Summary of Coverage for Existing and Project ........................................................................ 170
Table 100: Summary of Context for Existing and Project ......................................................................... 170

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1 INTRODUCTION
1.1 Summary of Study Organization
This Environmental Impact Lighting Analysis Study (Study) has been prepared by Francis Krahe &
Associates, Inc. to analyze Project lighting related to the proposed Archer Forward: Campus Preservation
and Improvement Plan (Project) at The Archer School for Girls (Archer). This Study defines the existing
lighting conditions within and surrounding the Project Site, reviews the applicable lighting regulations in
the area, and models the lighting of the proposed Project to evaluate the potential Project lighting impacts
on surrounding areas.
1.2 Outline of Study
This Introduction, Section 1, outlines the scope and intent of this Study, describes the Project and
establishes relevant thresholds and criteria. Section 2 contains a glossary of illumination terminology
used in this Study. Section 3 describes existing lighting conditions within the Project vicinity. In addition,
Section 4 evaluates potential lighting impacts associated with the Project.
1.3 Project Description
The Project Site is comprised of approximately 7.31 acres, including the existing 6.2 acre Archer campus,
which includes the Main Building, outdoor athletic fields, surface parking, and associated landscaped
plazas, courtyards, and pedestrian paths. The remainder of the Project Site is comprised of two adjacent
properties currently owned by Archer that comprise approximately 1.1 acres.

The Project proposes to provide Archer with modern, 21st century facilities to continue fulfilling its
educational mission now and in the future. The Project proposes to replace the existing North Wing of
the Main Building with an entirely new North Wing that would provide upgraded classrooms and improved
lighting, air conditioning, and information technologies (North Wing Renovation). A kitchen, a faculty
workroom, offices, and renovation of the existing courtyards located between the North Wing and the
Main Building also would be included as part of the North Wing Renovation. During construction of the
North Wing, Archer would establish a Temporary Classroom Village on the existing outdoor athletic fields.
The Project also proposes the development of new athletic, performing arts, and visual arts facilities,
including an approximately 41,400-square-foot Multipurpose Facility, an approximately 22,600-square-
foot Performing Arts Center, an approximately 7,400-square-foot Visual Arts Center, and an
approximately 2,300-square-foot Aquatics Center. The existing outdoor athletic fields would also be
improved and would include regulation-size soccer and softball fields. In addition, parking is proposed in
a new underground parking structure to accommodate approximately 212 cars within the western portion
of the campus. The Project also includes associated landscaped plazas, courtyards, and pedestrian
paths. The Project’s new facilities are described in more detail below.
1.3.1 New Facilities
1) Multipurpose Facility, North Garden and Court of Leaders

The proposed Multipurpose Facility would be constructed in the northeast portion of the Project
Site. This new building would include approximately 41,400 square feet that would provide indoor
athletics facilities for the Middle School and Upper School. The proposed Multipurpose Facility
would also be designed to allow the Upper School gymnasium to host all-school assemblies. In
addition, the Multipurpose Facility would support ancillary uses, such as a campus store and
concession area, staff offices, conference and meeting rooms, a medical office, a training room, a
weight room, a cardio-aerobics room, a yoga and dance studio, Upper School and Middle School
locker rooms, a stage, a laundry room and uniform storage area, and storage for building support
equipment.

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The Multipurpose Facility would be comprised of two general levels, with a Middle School
gymnasium on the lower level and an Upper School gymnasium on the upper level. The lower
level would be located below grade and partially open to the sunken North Garden to the west.

Lighting techniques in the Multipurpose Facility would facilitate visual acuity and comfort within
uniformly illuminated classrooms, offices, athletic facilities, and circulation areas. Minimum
average illuminance levels would range from 10 footcandles for circulation to 50 footcandles
within the Middle School and Upper School gymnasiums. Lighting techniques would minimize
high luminance values on the interior ceilings and walls. To enhance interconnection to the North
Garden, decorative pendants with concealed light sources would provide a subdued accent
adjacent to the full height glazing on the western façade of the Multipurpose Facility.

The sunken North Garden, which would serve as the primary access point to and from the
underground parking structure at the campus level, would include a garden and overlook area
with seating, planted steps, an open lawn, a grove of trees with paths and seating at the edges,
and planted steps leading to the underground parking structure.

Directly south of the Multipurpose Facility and the North Garden would be the Court of Leaders, a
landscaped plaza area and pedestrian path that would serve as a new focal point on campus,
support small outdoor gatherings, and provide connections for the on-site buildings.

Lighting techniques within the North Garden, Court of Leaders and other pedestrian areas would
primarily illuminate the ground plane. Shielded light sources would minimize glare and upwardly
directed light. Accent lighting of trees, landscape and wayfinding elements would create visual
interest and develop a comfortable, pleasant night space and sense of place. Lighting techniques
would emphasize uniformity and visual comfort. Illuminance levels would be subdued while
appropriate for safety and security within an exterior pedestrian area. Adjacent to building
entries, illuminance levels would increase to welcome the Archer community and facilitate a
comfortable transition between exterior and interior illumination levels. The Project lighting would
incorporate components and methods following recommended best practice to minimize glare
and light trespass. All lighting fixtures would be shielded to minimize direct view of lamps,
eliminate high brightness glare, and aimed so that light is contained within the Project Site. Exit
pathways would be illuminated to provide code required illumination for public safety with
shielded light sources directed downward.

2) Performing Arts Center

The proposed Performing Arts Center would be located along the eastern boundary of the
campus, east of the new North Wing, north of the apartment building located at 125 North
Barrington Avenue and south of the proposed Visual Arts Center and the residential properties
located at 11718 West Chaparal Street and 11706 West Chaparal Street. The Performing Arts
Center would provide stage, auditorium, and rehearsal facilities for Archer’s performing arts
program. Specifically, the Performing Arts Center would support uses such as a gallery,
auditorium and theater, stage, dressing rooms and a green room, set design and scene-shop, a
black box theater, a dance studio, an instrumental music room, a vocal music room, faculty
offices, costume storage and laundry area, stage storage, and general building support
equipment.

Lighting in the Performing Arts Center that is visible from the exterior of the building is located at
the north stairwell as well as the northwestern and western facades. The program within these
areas would range from circulation to offices and a dance studio. The illumination techniques in
these locations would prioritize uniformity, utilize low brightness light fixtures that shield light
sources and provide adequate illumination for visual acuity, safety, and security. Lighting for
theatrical and production purposes is not visible from the exterior of the Performing Arts Center.
The Project lighting would incorporate components and methods following recommended best

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