DG 1110-3-106
thresholds. Where large furniture or equipment is used,
(2) Circulation Within Room.
double doors should be provided or the doors sized to
Furniture and training aids should be arranged to
allow easy movement of equipment.
provide good visual contact between the instructor and
students, to allow students to see images on projection
F. Effect of Audio-Visual (A-V) Systems on Seating
screens easily, and to permit safe exiting in
Arrangements.
emergencies. Windows should be located along the
sides so that neither students nor instructors have to
(1) Considerations.
look into the glare of window-light. Seats for students
Seating arrangements should be planned to support
should not be closer than 2W nor farther than 6W
A-V aids for object demonstrations. Student viewing
from a projection or television screen of width W.
should be the primary concern in developing
Refer to paragraph 3-4 above. Aisle widths and
instructional spaces. Conference rooms for fewer than
locations and the number of seats which can be placed
50 students, intended for lectures which stress screen
together between aisles must comply with life safety
projection A-V, will not need sloped floors or risers
standards.
for seating. Conference rooms for object
demonstrations of techniques and equipment or for
(3) Room Openings and Access.
dialogue between students and instructor will need
either a permanent or portable riser system. The
a. Late students should be able to enter classrooms
number of seating rows, the lecture platform height,
without disrupting class activity. At least one door
and the lowest height of demonstration (focal point of
should be at the rear of the classroom.
viewing) determine the respective heights of the riser
elements. Refer to paragraph 3-4 above.
b. Access to classroom conducting classified instruction
should be controlled. See guidance on physical security
(2) Sample Arrangements.
in FM 19-30.
a. The seating arrangement in Figure 4-5 is typical for
c. Circulation around and into classrooms should be
conferences, lectures, and A-V presentations on a
easy and provide for safe exiting in emergencies. All
screen at the front wall.
doors should be at least 3 feet wide and recessed so as
not to stick out into the corridor when opened. Doors
b. The seating arrangement in Figures 4-4 and 4-6 is
must swing out from the room. Two exit routes
for equipment demonstrations and television viewing.
should be provided from each classroom; more may
In Figure 4-6, viewer-to-object distance for
be needed for very large classrooms to meet life safety
-
demonstrations is shorter than given in Figure 4-4;
standards.
however, A-V screen presentation is not satisfactory
because the viewing angle is too oblique for students
(4) Movement.
seated at the side. Television viewing from the two
Movement of equipment in and out of classrooms
positions shown lets all students see well.
should be easy. Classroom doorways should not have
25 feet by 30 feet.
Dimension:
Ceiling Height: 10 feet.
24 individual stations with table 2
Seating:
feet by 3 feet or 12 shared stations
with table 2 feet by 5 feet.
Figure 4-4
24-Student Classroom.
4-4
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