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The Enhanced Classroom Development Process: Standards and Practices

Andrew Faunce, Dartmouth CollegeMichael Ney, Gettysburg College

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The Enhanced Classroom Development Process: Standards and Practices

Part I

Design TheoryAndrew Faunce

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Large Screen PresentationHuman Factors

Design Principles

Design Deliverables

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Human FactorsVisual Perception

Aural Perception

Body Size and Movement

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Visual Perception

a(N.T.S.) a

10 Mins. of Arc (V)

¼” Height for Every 7’ DistanceBased on IDEAL ConditionsUnreliable Beyond 90 Degree (H) Viewing

ConeCentral Vision – DetailPeripheral Vision – Motion

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Aural PerceptionDirectional Cues

?

Level Differences Perceived at 2dB

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Body SizeHead Height – 4’0”Eye Height – 3’6”Ear Height – 3’6”

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Body MovementEASY/MAX Head/Eye Movement

HORIZONTAL

35 6030

45

60

VERTICAL

(N.T.S.)

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Design PrinciplesViewing DistancesImage SizeAngles of ViewLine of SightSound System RequirementsSpeaker Performance and Placement

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Most Distant ViewerGeneral ViewingReading/DetailInspection

aX 8 X 6 X 4

= 8 x Screen Height= 6 x Screen Height= 4 x Screen Height

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Screen Height CalculationGeneral Viewing = MDV / 8Reading/Detail = MDV / 6Inspection = MDV / 4

/4/6/8

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Closest Viewer CalculationClosest Viewer = 1 x Screen Width

Screen (top view)

ErgonomicEasy to RememberAll Viewers in 90 degree (H) Viewing Cone

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Angle of View - HorizontalSolving for ALL Possible 90 Degree Viewing Cones

Most ReliableBest for InspectionMost Costly

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Angle of View - HorizontalSolving for 90 degree Viewing Cone

Reliable for Reading and Moderate Detail ViewingUsed Most Often

(1)

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Angle of View - HorizontalSolving for the UNION of all 90 degree Viewing Cones

Acceptable for General Viewing (VIDEO)Less Costly

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Angle of View – Vertical

Section

30

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Sight Lines

Section

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Sound SystemSystem Requirements

Speaker Performance

Speaker Location

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System RequirementsDirectional Sound

Location Cues Important (Videos) Speakers Mounted Near Screen High Ceilings w/ Line of Sight to Viewers

Distributed Sound Location Cues Not Important Ceiling Speakers (typical) Low Ceilings or Interrupted Line of Sight

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Directional Sound

Section

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Distributed Sound

90

-3dB-3dB

S = 1.4 x R

S

R = ceiling ht – 3’6”

R

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Distributed Sound

More Ceiling Height = Wider CoverageZone Speakers Front to Back to Compensate

Section

HC

Proposed Seating - 194

HC

Plan

Zone 1

Zone 3

Zone 2

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Design DeliverablesProgramming:

“Program Statement”Design:

“Design Package” “Not for Construction” Docs

Construction: “Build Package” “Construction” Docs

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Program StatementText Description of Requirements

Room FunctionsSeat Count/ArrangementLogistics of UseSystem PerformanceProvide Examples and as Much Detail as Possible

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AV Design/Build PackageEquipment ListAV Block or Flow DiagramControl Block / Touch Screen LayoutsArchitectural - Plan, Elevations, Section, RCPDetails – racks, plates, mounts, caseworkRiser – conduits, j-boxes, cableServices Provided “By Others”

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PlanScreensViewing Cones (H)SeatingFurnishingsEquipment

Plan

Proposed Seating - 194

HC HC

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Reflected Ceiling Plan (RCP)

ScreensSpeaker LocationsSpeaker CoverageProjector MountsLighting FixturesHVAC VentsSprinkler Heads

HC

Proposed Seating - 194

HC

Plan

28Front Elevation

ElevationsFront, Side, BackScreensWhiteboard/Lighting

EquipmentFurnishingsControls/Plates

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SectionVertical Angle of ViewLine of Sight

Speaker CoverageProjector Light Paths

Section

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AV Block Diagram

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Control – Touch Screen Layout

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Rack Detail

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Plate Detail

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Casework Detail

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ReferencesInternational Communications Industries Association (ICIA) www.icia.org

Angles of View – DA-LITE Screen Company www.da-lite.com

Time-Saver Standards for Interior Design and Space Planning, De Chiara

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Contact InfoAndrew FaunceInstructional Services/Computing Services - Dartmouth College6195 North Fairbanks - Hanover, NH 03755andrew.g.faunce@dartmouth.eduhttp://www.dartmouth.edu/~insvcs/603.646.3614 voice603.646.1343 fax