Chapter 9 - Barrier-Free Design

Question 1

An __________ is a continuous, unobstructed path connecting ALL accessible elements and spaces in a building or facility. It includes corridors, doorways, floors, ramps, elevators, lifts, and clear floor space at fixtures.

Answer 1

accessible route

Question 2

The standards for accessible routes are designed primarily to accommodate a person ________, but they should also accommodate _________.

Answer 2

people in a wheelchair
people with other disabilities

Question 3

The minimum clear width for an accessible route is __” continuously and ___” at a passage point such as a doorway.

Answer 3

36”
32”

Question 4

The passage point cannot be more than ___” long.

Answer 4

24”

Question 5

The minimum passage width for two wheelchairs is __”.

Answer 5

60”

Question 6

If an accessible route is less than ___” wide, then passing spaces at least __” x ___” must be provided at intervals not to exceed _____’.

Answer 6

60”
60”x60”
200’

Question 7

The minimum clear floor space required to accommodate one stationary wheelchair is ___” x ____” .

Answer 7

30” x 48”

Question 8

For maneuverability, a minimum ___” diameter circle is required for a wheelchair to make a ___ degree turn.

Answer 8

60” diameter
180 degree turn

Question 9

In place of this, a T-shaped space of what sizes may be provided?

Answer 9

36” x 36” x 36”

Question 10

An accessible route may have a slope up to ____ or ___%.

Answer 10

1:20 (1 INCH of rise for every 20 FEET of distance) or 5%

Question 11

A slope any greater than ___ or ___ is classified as a ramp and must meet the requirements thereof.

Answer 11

1:20 or 5%

Question 12

A door must have a minimum clear opening width of ___” when opened at 90 degrees.

Answer 12

32”

Question 13

The maximum depth of a doorway 32” wide is ____”

Answer 13

24”

Question 14

If the depth of a 32” wide door is deeper than 24”, the width must be increased to _____”

Answer 14

36”

Question 15

Thresholds at doorways cannot exceed a __” vertical change in elevation

Answer 15

1/4”

Question 16

Vertical changes in elevations between ____” and ____” must be beveled so no part of the threshold slopes more than ____vertical unit for each ____ horizontal units (i.e. 1:2 slope)

Answer 16

1/4” and 1/2”
1 vertical : 2 horizontal
1:2 slope

Question 17

Operating devices must have a shape that is _____. This includes ____, ______, and _____.

Answer 17

easy to grasp
lever handles, push-type mechanisms, and u-shaped handles

Question 18

If door closers are provided, they must ______

Answer 18

be adjusted to slow the closing time

Question 19

The opening force required to push or pull open an interior hinged door should not require more than ___ pounds of force to open

Answer 19

5

Question 20

Toilet Stalls–in most cases, the door must provide a minimum clear opening of __” and swing ____, ____from the stall enclosure

Answer 20

32” out
away from the stall enclosure

Question 21

The clearance depth in toilet stalls depends on ______

Answer 21

whether the toilet is wall hung or floor mounted

Question 22

At least one ambulatory toilet shall be built in rooms where there are ____ or more toilet stalls.

Answer 22

6

Question 23

All toilet stalls must have toe clearance below the front partition and ____

Answer 23

at least one side partition

Question 24

Toe clearance below toilet stalls must be a minimum of ___” above the floor and ___” beyond the compartment-side face of the partition

Answer 24

9” 6”

Question 25

The dimension from the centerline of the toilet is ____ from an adjacent wall.

Answer 25

16-18”

Question 26

In residential units, the edge of a lavatory must be located a minimum of ___” from the centerline of the toilet

Answer 26

18”

Question 27

Toilet paper dispensers must be installed with the centerline between ___” and ___” in front of the water closet, with the outlet of the dispenser between __” and ___” above the floor.

Answer 27

7” and 9” in front
15” and 48” AFF

Question 28

A clear floor space of ___” x ___” must be provided in front of the urinal, which may adjoin or overlap an accessible route.

Answer 28

30” x 48”

Question 29

Urinal shields that do not extend beyond the front edge of the rim, may be provided with ___” of clearance between them.

Answer 29

29”

Question 30

Faucets must be operable with ____ and cannot require tight grasping, pinching, or twisting of the wrist

Answer 30

one hand

Question 31

Are lever-operated, push-type, and automatically controlled mechanisms acceptable?

Answer 31

yes

Question 32

Mirrors above lavatories and countertops must be mounted with the bottom edge of the reflecting surface no higher than __” from the floor.

Answer 32

40”

Question 33

Drinking fountains without clear space below must have a clear floor space in front of them at least __” wide x __” deep with the long dimension parallel to the fountain.The spout must be a maximum of __” from the front edge of the unit for users making a forwards approach.

Answer 33

30” x 48”
5”

Question 34

The IBC requires that _____ drinking fountains be provided.

Answer 34

2 drinking fountainsone for users and one for persons who are standing. In lieu of two separate fountains, a combination unit that provides for both may be provided.

Question 35

Bathtubs must be configured with an ______ or _______.

Answer 35

in-tub seat
a seat at the head of the tub

Question 36

Shower stalls may be one of two basic types, _____ or ______.

Answer 36

roll-in
transfer

Question 37

When facilities with accessible sleeping rooms or suites are provided, a minimum number of rooms having _____, as specified in the ____ or _____, is required.

Answer 37

roll-in showers, as specified in the ADA or federal Fair Housing Act

Question 38

A seat is required in the ____, while a folding seat is required in the ____ if a permanent seat is not provided.

Answer 38

smaller shower stall configuration larger configuration

Question 39

Grab bars must be provided in the shower and must be mounted ___” to __” AFF

Answer 39

33” to 36”

Question 40

Floor surfaces must be ____, ____, and _____.

Answer 40

stable, firm, and slip-resistant

Question 41

If a floor change is less than ____, it may be vertical and without edge treatment.

Answer 41

1/4”

Question 42

If a floor change is between ___” and ___”, it must be beveled, with a slope no great than ____

Answer 42

1/4” and 1/2” 1:2 (1/2” of rise requires 1” of length)

Question 43

Floor changes greater than ___” must be accomplished with a ramp meeting the requirements of such

Answer 43

1/2”

Question 44

Carpets must have a _____ or ______.

Answer 44

firm cushion/backing or no cushion

Question 45

Carpet must have a _____ loop, ______ pile, or _________ pile texture with a maximum pile height of _______.

Answer 45

level
level-cut
level-cut/uncut
1/2”

Question 46

Carpet must be _____ and have ________.

Answer 46

securely attached to the floor and have trim along all lengths of exposed edges

Question 47

Ramp slopes may not exceed ____

Answer 47

1:12
1 inch of rise for every 12 inches of run

Question 48

The maximum rise for any ramp is limited to _____

Answer 48

30 inches

Question 49

Changes in elevation greater than ____ require a level landing before the next run of ramp is encountered

Answer 49

30 inches

Question 50

In cases where existing conditions prevent the ____ slope, a ____ slope is permitted if the maximum rise does not exceed ____.

Answer 50

1: 12
1: 10
6”

Question 51

A ____slope is permitted if the max rise does not exceed ____in.

Answer 51

1:8
3”

Question 52

A ramp must have a minimum clear width of ___” and landings at least ______________.

Answer 52

36”
at least as wide as the widest ramp leading to them

Question 53

Landing lengths must be a minimum of _____

Answer 53

60”

Question 54

If ramps change direction at a landing, the landing must be at least ______

Answer 54

60”

Question 55

Ramps with rises greater than ___” or lengths greater than ____” must have handrails on both sides, the top of the handrail must be from ____” to _____” above the ramp surface

Answer 55

6 inches
72 inches
34-38 inches

Question 56

On ramps, handrails must extend horizontally at least ____” beyond the top and bottom of the ramp segment and have a diameter of ___ to ____”

Answer 56

12”
1 1/4” to 1 1/2”

Question 57

In assembly, handrails (are/are not) required for ramps adjacent to seating.

Answer 57

are not

Question 58

Egress stairs and stairs not connected by an elevator: Max riser height: ___” Treads (measured from riser to rise): ___”

Answer 58

7”
11”

Question 59

Open risers are not permitted, however when a stairway is not required to be accessible open risers are permitted provided that the opening between treads does not permit the passage of a sphere with a diameter of ___”.

Answer 59

4”

Question 60

The undersides of the nosing must not be ______ and must conform with certain styles.

Answer 60

abrupt

Question 61

Stair handrails must be continuous ________

Answer 61

on both sides of the stairs

Question 62

The inside handrail on ______ or ______ stairs must always be continuous.

Answer 62

switchback or dogleg

Question 63

Stair handrails must have a diameter of ___” to_____”

Answer 63

1 1/4” to 2”

Question 64

When an exit stairway is part of an accessible route in an unsprinklered building, there must be a clear width of ____” between the handrails.

Answer 64

48”

Question 65

A protruding object with a lower edge less than ___” AFF can be detected by a person using a cane, so these objects may project any amount.

Answer 65

27”

Question 66

If the vertical clearance of an area adjacent of an accessible route is reduced to less than _____”, a guardrail or other barrier must be provided.

Answer 66

80”

Question 67

A _________ is a surface feature built in or applied to walking surfaces or other elements to warn of hazards on a circulation path.

Answer 67

detectable warning

Question 68

Detectable warning surfaces
consist of 1/2” high truncated domes spaced between ____ and ____ inches on center in a square grid pattern.

Answer 68

1.6
2.4

Question 69

Continuous ________ surfaces _____” wide are generally required at passenger transit platform edges where there is no guard or other protective elements.

Answer 69

detectable warning surfaces
24”

Question 70

Both the ___ and ___ required detectable warning surfaces at platform boarding edges, but the ___ does not require them at ______

Answer 70

ADA and IBC
IBC
bus stops

Question 71

Signage for visually impaired people must be provided, and must give _____ and ____

Answer 71

emergency information
general circulation directions

Question 72

Signage is also required for _____

Answer 72

elevators

Question 73

Emergency warning systems that provide both ____ and ____ alarms are required

Answer 73

visual and audible

Question 74

Audible alarms must produce a sound that exceeds the prevailing sound level in the room or space by at least ___dB

Answer 74

15

Question 75

________ alarms must be ________ _______ that have a frequency of about 1 cycle/ second

Answer 75

Visual
flashing lights

Question 76

Alarms must comply with ______

Answer 76

NFPA 72

Question 77

ADA requires that certain accessible rooms and features be ________________

Answer 77

clearly identified with the symbol for accessibility.

Question 78

The hall lantern for an elevator should be centered at _____

Answer 78

72”

Question 79

The call button for an elevator should be centered at ____

Answer 79

48”

Question 80

The hall lantern must give a ___ and ___ signal

Answer 80

audible and visual

Question 81

Inside the elevator car, the floor buttons may be no higher than ____ in above the floor. However when a side approach is possible and the elevator panel serves more than 16 openings, floor buttons may be a max of ___ in AFF.

Answer 81

48”
54”

Question 82

Emergency controls in an elevator cab must be grouped ________ with the centerline of the group no less than ________” AFF

Answer 82

At the bottom of the panel
35”

Question 83

If fixed or built-in seating or tables are provided in accessible public or common-use areas, at least____% but not less than ___ table, of the seating areas must be accessible. This applies to facilities such as restaurants, nightclubs, churches, and similar spaces

Answer 83

5%
not less than 1 table

Question 84

In places of assembly with fixed seating, the minimum number of wheelchair locations is given in the ______ based on the capacity of the seating in the assembly area.

Answer 84

ADA/ABA Guidelines Table

Question 85

At least ___% (no less) of all fixed seats must be aisle seats with no arms rests on the aisle side, or must have removable or folding armrests on the aisle side. Signs notifying people of the availability of these seats must be posted ______.

Answer 85

1%
at the ticket office

Question 86

The wheelchair areas in assembly spaces, must be an ________ and must be provided so people ________

Answer 86

an integral part of the overall seating plan

have a choice of admission prices and lines of sight comparable to those available for member of the general public.

Question 87

At least one __________ must be provided next to each wheelchair area.

Answer 87

companion seat

Question 88

Wheelchair areas must join an _______

Answer 88

accessible route that also serves as a means of emergency egress

Question 89

When assembly areas are part of a ______ and it is not feasible to disperse the seating areas throughout the facility, the accessible seating areas may be ______. These _____ areas must have provisions for companion seating and must be located on an accessible route that also serves as a means of emergency egress.

Answer 89

remodeling
clustered
clusters