INDEPENDENCE VISITOR CENTER PHILADELPHIA, PA LUTRON LIGHTING PRESENTATION DECEMBER 10, 2002 BY LISA BORNEMANN Independence Visitor Center Philadelphia, PA

INDEPENDENCE VISITOR CENTER TABLE OF CONTENTS BUILDING CHARACTERISTICS REDESIGNED SPACES EAST WALL & TRELLIS THEATER TICKET COUNTER MAIN HALL Independence Visitor Center Philadelphia, PA

INDEPENDENCE VISITOR CENTER BUILDING CHARACTERISTICS LOCATION Philadelphia, PA Built as part of the redevelopment of Independence National Historical Park along with the Liberty Bell Pavilion and the National Constitution Center Built on block two of the three-block, 15 acre Independence Mall Picture courtesy of Brinjac Engineering Independence Visitor Center Philadelphia, PA

INDEPENDENCE VISITOR CENTER BUILDING CHARACTERISTICS ARCHITECT Kallmann McKinnell & Wood Architects DESCRIPTION 54,000 sq. ft., two story facility built above an existing three level underground parking garage Steel building with a brick façade Copper, hip roof with skylights COMPLETION November 19, 2001 COST Total cost: $22,000,000 Picture courtesy of Brinjac Engineering Independence Visitor Center Philadelphia, PA

INDEPENDENCE VISITOR CENTER BUILDING ORIENTATION Philadelphia, PA: Latitude: 39° N Longitude: 75° W East Wall & Trellis Theater Ticket Counter Main Hall Independence Visitor Center Philadelphia, PA

INDEPENDENCE VISITOR CENTER REDESIGNED SPACES EAST WALL & TRELLIS THEATER TICKET COUNTER MAIN HALL Independence Visitor Center Philadelphia, PA

EAST WALL & TRELLIS SPACE CHARACTERISTICS Trellis Walkway next to the east wall Brick columns holding up white wooden beams Ivy covers the top East wall Brick façade Large windows along entire facade SPACE CHARACTERISTICS Independence Visitor Center Philadelphia, PA

EAST WALL & TRELLIS GOALS East Elevation Draw attention to the building at night Highlight the ivy growing on the trellis Highlight the walkway along the building East Elevation Independence Visitor Center Philadelphia, PA

EAST WALL & TRELLIS LOCATION Independence Visitor Center Philadelphia, PA

EAST WALL & TRELLIS DESIGN OPTION 1 Uplight ivy on trellis: Inverted metal halide recessed step light Graze brick column: Metal halide accent light hidden within trellis Downlight lights the walkway as well as the column Uplight brick facade: In-grade metal halide uplights Independence Visitor Center Philadelphia, PA

EAST WALL & TRELLIS DESIGN OPTION 1 DETAIL Inverted CFL recessed step light Ivy on white wooden trellis Metal halide accent light hidden within trellis Brick column Independence Visitor Center Philadelphia, PA

EAST WALL & TRELLIS DESIGN OPTION 2 Uplight brick façade and columns: In-grade metal halide uplights Independence Visitor Center Philadelphia, PA

EAST WALL & TRELLIS UPLIGHT EXAMPLE Independence Visitor Center Philadelphia, PA

INDEPENDENCE VISITOR CENTER REDESIGNED SPACES EAST FAÇADE & TRELLIS THEATER TICKET COUNTER MAIN HALL Independence Visitor Center Philadelphia, PA

THEATER LOCATION Independence Visitor Center Philadelphia, PA

THEATER SPACE CHARACTERISTICS Finishes Floor Walls Ceiling Furniture DESCRIPTION 170 seat theater with 12 rows of bench seating There are a projection screen and podium in the front of the room DIMENSIONS Room: 46’-7” x 34’-11” Height: Front wall = 11’-4”, Back wall = 6’-11 1/8” Finishes Floor Walls Ceiling Furniture Rubber - Matte dark gray ρ = 0.20 Acoustical Panels on walls - Dark Quill ρ = 0.40 Combination of acoustical panels and drywall painted matte off-white ρ = 0.70 Benches and Podium: Light wood with matte finish Independence Visitor Center Philadelphia, PA

THEATER DESIGN GOALS TASKS To create a pleasing, relaxed environment To provide lighting appropriate for good facial rendering in audience and at podium To create adequate visibility for safe circulation To provide comfortable viewing conditions To provide a power density that is 60% of the recommended value from ASHRAE/IESNA Standard 90.1 TASKS Viewing the video Listening and watching a speaker at the podium Reading programs before the video Entering or leaving the theater during the video Independence Visitor Center Philadelphia, PA

THEATER DESIGN CRITERIA Power Density ASHRAE Standard 90.1 = 0.5 – 3.2 W/sq.ft. Aim for 0.5 W/sq.ft. Facial Modeling when using podium Good color rendering: Use lamps with CRI = 80’s Use warmer lamps to make people look healthy and alive: CCT = 3500 Eliminate shadows with careful placement of light fixtures Reading Have capabilities to provide 30 fc on the workplane during intermission, always have a minimum of 5 fc Minimize shadows with careful placement of light fixtures Circulation before, after, and during the video During video circulation have 0.1-0.2 fc During intermission, before, after video: 5 fc Independence Visitor Center Philadelphia, PA

THEATER LIGHTING MODE RELAXED Used when first entering the theater before the show and during intermission Non-uniform lighting mode Peripheral wall emphasis HOW ACHIEVED Dimmable wall sconces mounted on the two side walls Dimmable fluorescent cove lighting Independence Visitor Center Philadelphia, PA

THEATER LIGHTING MODE VISUAL CLARITY Bright, uniform direct lighting with peripheral emphasis Used when speaker is at podium Used when audience is reading programs HOW ACHIEVED Accent lighting on speaker at podium Compact Fluorescent downlights on dimmers Independence Visitor Center Philadelphia, PA

THEATER FLOOR PLAN AND LIGHTING LAYOUT IR Accent Light CFL Wall Sconce Independence Visitor Center Philadelphia, PA

THEATER PROPOSED LIGHTING LAYOUT Uplight ceiling: 1-lamp fluorescent T8 strip located in cove Downlights: CFL downlight with 6” aperature Independence Visitor Center Philadelphia, PA

THEATER DESIGN SKETCH Below: West side wall Above: Back wall Independence Visitor Center Philadelphia, PA

THEATER Dimming Control System Divide theater into zones and scenes All wall sconces dimmed on one zone Accent lights aimed at podium A separate zone for each row of downlights parallel to the screen All fluorescent cove fixtures on one zone Scenes Entering/Intermission/Leaving During Video Speaker at podium Independence Visitor Center Philadelphia, PA

INDEPENDENCE VISITOR CENTER REDESIGNED SPACES EAST FAÇADE & TRELLIS THEATER TICKET COUNTER MAIN HALL Independence Visitor Center Philadelphia, PA

TICKET COUNTER LOCATION Independence Visitor Center Philadelphia, PA

TICKET COUNTER STATISTICS Finishes Floor Walls Ceiling Furniture DESCRIPTION 17 VDT screens on three sides of counter space Back wall behind main counter has Independence Visitor Center Sign DIMENSIONS Main counter: 52’ long Side counters: 11’ long Height: 9’-4” Finishes Floor Walls Ceiling Furniture Rubber - Matte dark gray ρ = 0.20 Gypsum Wall Board painted off-white (Larson's Cream) ρ = 0.55 Acoustic ceiling tile, white ρ = 0.70 Desk: Light maple wood Counter: Dark gray, matte, corian synthetic Independence Visitor Center Philadelphia, PA

TICKET COUNTER DESIGN GOALS TASKS To attract attention to the spatial surfaces To make space warm and inviting To use good facial modeling to make the workers look approachable To prevent glare on VDT screens To provide a power density that is 60% of the recommended value from ASHRAE/IESNA Standard 90.1 TASKS VDT screen usage Reading written and printed tasks Facial Modeling Independence Visitor Center Philadelphia, PA

TICKET COUNTER DESIGN CRITERIA Power Density ASHRAE Standard 90.1 = 1.5 W/sq. ft. Aim for 60% ASHRAE = 0.9 W/sq. ft VDT screen usage Minimize reflected and direct glare on VDT screens Source-Task-Eye Geometry: locate light fixtures out of offending zone Reading written and printed tasks Provide a minimum of 30 fc on the countertop Minimize shadows with careful placement of light fixtures Facial Modeling Good color rendering: Use lamps with CRI = 80’s Use warmer lamps to make people look healthy and alive: CCT = 3500 Eliminate harsh shadows by placement of luminaires Independence Visitor Center Philadelphia, PA

TICKET COUNTER Lighting Mode – Attract Attention Lighting the back wall behind the ticket counter Frosted glass will be placed in front of the back wall T8 fluorescent strips will be used to backlight the glass The letters from the sign will be mounted directly to the glass Lighting Mode – Visual Clarity Recessed fluorescent troffer with louvers placed above ticket counter Placed in front of VDT screens so direct glare is not a problem Independence Visitor Center Philadelphia, PA

TICKET COUNTER FLOOR PLAN AND LIGHTING LAYOUT Backlit frosted glass wall T8 strip mounted in cove as a wallwasher Recessed 1-lamp T8 fixture with brushed aluminum louvers Independence Visitor Center Philadelphia, PA

TICKET COUNTER FLOOR PLAN AND LIGHTING LAYOUT Main Counter Side Counter Independence Visitor Center Philadelphia, PA

TICKET COUNTER FROSTED GLASS Fluorescent T8 strips Back white wall Independence Visitor Center Philadelphia, PA

TICKET COUNTER BACKLIT WALL DETAILS Fluorescent T8 strip White Back Wall Frosted Glass Wall White Side Wall PLAN VIEW AT BACKLIT WALL Fluorescent T8 strip White Back Wall SECTION AT BACKWALL Independence Visitor Center Philadelphia, PA

TICKET COUNTER DESIGN SKETCH Independence Visitor Center Philadelphia, PA

INDEPENDENCE VISITOR CENTER REDESIGNED SPACES EAST FAÇADE & TRELLIS THEATER TICKET COUNTER MAIN HALL Independence Visitor Center Philadelphia, PA

MAIN HALL LOCATION Independence Visitor Center Philadelphia, PA

MAIN HALL STATISTICS Finishes Floor Walls Ceiling DESCRIPTION Two-story open space with exposed truss roof Skylights exist in parts of the roof Large windows on the west side Main circulation space DIMENSIONS 20’-8 ¾” x 426’ Height: 36’-5” Finishes Floor Walls Ceiling Gray-Green Terrazzo ρ = 0.30 Gypsum Wall Board painted off-white (Larson's Cream) ρ = 0.55 Perforated metal deck w/ acoustical panels, painted matte white. Parts with skylights. ρ = 0.70 Independence Visitor Center Philadelphia, PA

MAIN HALL DESIGN GOALS TASKS To create a pleasing, inviting environment To lead visitors through the space To use good facial modeling To incorporate daylighting as much as possible To provide a power density that is 60% of the recommended value from ASHRAE/IESNA Standard 90.1 TASKS Facial Modeling Circulation Reading flat displays on vertical surfaces Independence Visitor Center Philadelphia, PA

MAIN HALL DESIGN CRITERIA Power Density ASRAE Standard 90.1: 0.5-1.6 W/sq.ft. Aim for 0.5 W/sq.ft. Reading flat displays on vertical surfaces Vertical illuminance = 30 fc Minimize shadows with careful placement of light fixtures Minimize reflected and direct glare from fixtures and daylight Good color rendering: Lamps with CRI = 80’s Facial modeling Good color rendering: Use lamps with CRI = 80’s Use warmer lamps to make people look healthy and alive: CCT = 3500 Eliminate harsh shadows by careful placement of luminaires Circulation Horizontal illuminance = 10 – 20 fc Independence Visitor Center Philadelphia, PA

MAIN HALL LIGHTING PROPOSAL 2-lamp T8 strip fixtures with blue gels Uplight roof 2-lamp T8 strip fixtures with blue gels Blue gels – give cool feeling like the sky Add more skylights Uplight inside openings Lightbox Warm color lamp – 2700K No Color Blue τ = 62% Independence Visitor Center Philadelphia, PA

MAIN HALL LIGHTBOX LIGHTBOX DETAIL 1”= 1’-0” 2’ x 7’-5 3/8” x 1’ 1:1 ratio for distance from lamp to acrylic and distance between lamps ½” Acrylic LIGHTBOX DETAIL 1”= 1’-0” T8 Fluorescent Strip Independence Visitor Center Philadelphia, PA

MAIN HALL LIGHTING PROPOSAL Independence Visitor Center Philadelphia, PA

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