Accessibility

Question 1

With regards to wayfinding, what are Lynch’s five mapping elements?

Answer 1

Paths, Edges, Districts, Nodes, Landmarks

Question 2

Tactile characters on signs shall be located a minimum of how many inches (mm) above the finish floor.

Answer 2

48 inches

Question 3

The determination of exact requirements for grab bars in a toilet room is most appropiately made during what phase?

Answer 3

Design development

Question 4

The minimum clearance width for a door is…

Answer 4

32”

Question 5

Horizontal grab bars at the side wall of an accessible toilet must ne mounted at:

Answer 5

33”-36” AFF

Question 6

What is the minimum clear floor space required for side transfer for an accessible (barrier free) shower?

Answer 6

36”x48”

Question 7

As measured from nosing, a handrail for barrier-free design must have a height of…

Answer 7

34”-38”

Question 8

What is the correct dimension for the top of rim height of an accessible urinal?

Answer 8

17”

Question 9

What is the requirement of space needed on the push and pull side of a door?

Answer 9

minimum of 18” on pull side and 12” on push side is required

Question 10

Which solutions can interior designers incorporate for good bathroom design to address the loss of visual acuity due to aging?

Answer 10

Increased and flexible general lighting

Question 11

Bottom extension at stairs:

Answer 11

bottom of stair flight: handrails shall extend at the slope of the stair flight for a horizontal distance equal to one stair tread depth beyond the bottom trad nosing.

Shall return to wall, guard, or landing surface

Question 12

Controls for all ADA wall mounted accessiories must be located how many inches AFF for a side reach?

Answer 12

15”-48”

Question 13

How hight should acoustic panels be?

Answer 13

at least 60”

Question 14

“inclusive” design, sometimes referred to as “universal” design, is characterized by what main feature?

Answer 14

Inclusive design addresses the needs of the broadest range of individuals

Question 15

Accessible mirrors over a lavatory must be mounted with the edge of the reflective surface no higher than how many inches AFF?

Answer 15

40”

Question 16

Characteristics of circular accessible handrails

Answer 16

must have outside diameter of 1 1/4” minimum and 2” max

1 1/2” clearance from the wall is minimum. it can be more

Question 17

According to the ADA section 702 “fire alarm safety”, audible alarms have a max. dB level requirement. True or False

Answer 17

True

Question 18

When designing a stairway, which items must be designed to specific requirements to be accessible?

Answer 18

nosing and handrail

Question 19

If a accessible route is less than 60” wide, when must a 60”x 60” passing space be provided?

Answer 19

Accessible routes and other clearances are based upon basic dimensional requirements for wheelchairs. If an accessible route is less than 60 in (1525 mm) wide, then passing spaces at least 60″ x 60″ (1525 mm x 1525 mm) must be provided at intervals not to exceed 200 ft

Question 20

What are the require tread and riser height for stairs?

Answer 20

Riser: 4” minimum and 7” Maximum

Tread: 11” deep minimum, there is no maximum

Question 21

What is static load?

Answer 21

The maximum amount of non-moving weight a piece of equipment can bear.

For example, it would be applied to furniture, handrails, grab bars, and toilets.

Question 22

What is dynamic load?

Answer 22

Designing for safety, dynamic load accommodates the weight of a patient in falling motion.

Dynamic load must always exceed the static load.

As a rule of thumb, a falling human is double their weight. If we are designing for a bariatric population of up to 900 pounds, anything we specify has to withstand an impact weight—or dynamic load—of 1800 pounds.

Question 23

What is the maximum rise a ramp can be? What rise is the most comfortable?

Answer 23

1:12 Max
1:20 is the most comfortable

Question 24

What is the minimum clear width for a ramp and what size should the landings be

Answer 24

36” wide ramp run
60” landing

Question 25

List the requirements for signage (height of letters, format, etc)

Answer 25

• Height: 5/8” - 2” high
• Must be upper case
• Font: sans serif or simple serif
• Grade 2 Braille
• Pictograms must be 6” high and be accompanied by the equivalent verbal description placed directly below pictogram
  -Finish: eggshell, matte or non glare finish with characters and symbols contrast with the background