1 the enhanced classroom development process: standards and practices andrew faunce, dartmouth...

1

The Enhanced Classroom Development Process: Standards and Practices

Andrew Faunce, Dartmouth CollegeMichael Ney, Gettysburg College

2

The Enhanced Classroom Development Process: Standards and Practices

Part I

Design TheoryAndrew Faunce

3

Large Screen Presentation

Human Factors

Design Principles

Design Deliverables

4

Human Factors

Visual Perception

Aural Perception

Body Size and Movement

5

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

6

Aural Perception

Directional Cues

?

Level Differences Perceived at 2dB

7

Body Size

Head Height – 4’0”Eye Height – 3’6”

Ear Height – 3’6”

8

Body Movement

EASY/MAX Head/Eye Movement

HORIZONTAL

35 6030

45

60

VERTICAL

(N.T.S.)

9

Design Principles

Viewing DistancesImage SizeAngles of ViewLine of SightSound System RequirementsSpeaker Performance and Placement

10

Most Distant Viewer

General ViewingReading/DetailInspection

a

X 8 X 6 X 4

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

11

Screen Height Calculation

General Viewing = MDV / 8Reading/Detail = MDV / 6Inspection = MDV / 4

/4

/6

/8

12

Closest Viewer Calculation

Closest Viewer = 1 x Screen Width

Screen (top view)

Ergonomic

Easy to Remember

All Viewers in 90 degree (H) Viewing Cone

13

Angle of View - Horizontal

Solving for ALL Possible 90 Degree Viewing Cones

Most Reliable

Best for Inspection

Most Costly

14

Angle of View - Horizontal

Solving for 90 degree Viewing Cone

Reliable for Reading and Moderate Detail Viewing

Used Most Often

(1)

15

Angle of View - Horizontal

Solving for the UNION of all 90 degree Viewing Cones

Acceptable for General Viewing (VIDEO)

Less Costly

16

Angle of View – Vertical

Section

30

17

Sight Lines

Section

18

Sound System

System Requirements

Speaker Performance

Speaker Location

19

System Requirements

Directional 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

20

Directional Sound

Section

21

Distributed Sound

90

-3dB-3dB

S = 1.4 x R

S

R = ceiling ht – 3’6”

R

22

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

23

Design Deliverables

Programming: “Program Statement”

Design: “Design Package” “Not for Construction” Docs

Construction: “Build Package” “Construction” Docs

24

Program Statement

Text Description of RequirementsRoom FunctionsSeat Count/ArrangementLogistics of UseSystem PerformanceProvide Examples and as Much Detail as Possible

25

AV Design/Build Package

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

26

Plan

ScreensViewing Cones (H)SeatingFurnishingsEquipment

Plan

Proposed Seating - 194

HC HC

27

Reflected Ceiling Plan (RCP)

ScreensSpeaker LocationsSpeaker CoverageProjector MountsLighting FixturesHVAC VentsSprinkler Heads

HC

Proposed Seating - 194

HC

Plan

28

Front Elevation

Elevations

Front, Side, BackScreensWhiteboard/Lighting

EquipmentFurnishingsControls/Plates

29

Section

Vertical Angle of ViewLine of Sight

Speaker CoverageProjector Light Paths

Section

30

AV Block Diagram

31

Control – Touch Screen Layout

32

Rack Detail

33

Plate Detail

34

Casework Detail

35

References

International 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

36

Contact Info

Andrew 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