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Your proposal should be a minimum of two pages in length, not counting thetitle page and the references page, MUST include a copy of your computations/calculations, and may include graphics to illustrate your design. You are required to use a minimum of two outside sources; one may be the textbook.

Using Anthropometric Data to Compute Measurements and Design for Target Populations

Things to remember when using Anthropometric Data

1. Determine the user population
2. Determine the applicable anthropometric dimension(s)
3. Determine the percentage of the population to accommodate
4. Compute the Measurement(s)
5. Determine if any special considerations should be given

Example #1

1. Determine the user population

In this example, since the office building is in Chicago we will focus on U.S. data.  Also, the doorway will be used by both males and females.  In this instance, we would focus on male data since the male data is greater than the female data and would therefore accommodate the tallest female.

1. Determine the applicable anthropometric dimension

We are computing overhead clearance so we would use standing height or stature.  (#19 from table 3.2 on page 68)

1. Determine the percentage of the population to accommodate

Since this is a clearance we would want to ensure that the tallest individuals could clear the doorway.  In this instance we would want to accommodate 99% of the user population.

1. Compute the Measurement(s)

Using the formula

x = x’ + (z x sd) from 3.2 on page 74 in the text

x’ = 1755 (from table 3.2 on page 69 in the text)

z = 2.32 (from table 3.4 on page 75 in the text)

sd = 71 (from table 3.2 on page 69 in the text)

x= 1755 + (2.32 x 71) = 1,919.72 mm or 75.58 inches or 6.3 feet

1. Determine if any special considerations should be given

In this instance special consideration should be given as follows: (Figure 3.2 on page 68)

10 cm for walking, 2 cm for hardhats, and 5 cm for safety = 17 cm or 170 mm

Height of the doorway = 1919.72mm + 170mm = 2089.72mm or 6.9 feet

Example #2

Determine the horizontal location for the controls on a piece of equipment that will be used by most people at a seated workstation in an office building in Beijing.

1. Determine the user population

In this example, since the office building is in Beijing will use data for China.  Again, although the equipment is being used by both males and females, we will focus on female data since they have the shorter arms and males would therefore be accommodated.

1. Determine the applicable anthropometric dimension

We will be computing the forward functional reach from a seated position.  (#7 from table 3.2 on page 67)

1. Determine the percentage of the population to accommodate

In this example, we must ensure those individuals with shorter arms can reach the controls so we will be using the 5th percentile data.

1. Compute the Measurement(s)

Using the formula

x = x’ + (z x sd) from 3.2 on page 74 in the text

x’ = 753mm (from table 3.2 on page 69 in the text)

z = -1.64 (from table 3.4 on page 75 in the text)

sd = 35mm (from table 3.2 on page 69 in the text)

x= 753mm + (-1.64 x 35) = 695.6 mm or 2.28 feet

1. Determine if any special considerations should be given

In this instance there will be no special consideration given, therefore the controls should be located at a distance of 695.6mm or 2.28 feet away from the workers seated workstation.

Example #3

Determine the range of adjustability for a standing work podium to be used by female hostesses in a restaurant in Dallas.

1. Determine the user population

In this example, since the restaurant is located in Dallas we will use U.S. data and since the workstation will only be used by females we will only use female data.

1. Determine the applicable anthropometric dimension

In this example, we will be using the standing elbow height.  (#21 from table 3.2 on page 68)

1. Determine the percentage of the population to accommodate

In this example, we will design to accommodate 90% of the user population so we will need to look at both the data for the shorter workers (5th percentile) and the taller workers (95th percentile).

1. Compute the Measurement(s)

Using the formula

x = x’ + (z x sd) from 3.2 on page 74 in the text

x’ = 1000mm (from table 3.2 on page 70 in the text)

z = -1.64 (from table 3.4 on page 75 in the text) for the 5th percentile

z = 1.64 (from table 3.4 on page 75 in the text) for the 95th percentile

sd = 52mm (from table 3.2 on page 70 in the text)

x= 1000mm + (-1.64 x 52) = 914.72 mm  (5th percentile)

x= 1000mm + (1.64 x 52) = 1085.28 mm  (95th percentile)

1. Determine if any special considerations should be given

In this instance special consideration should be given as follows: (See page 82)

25 mm to stature for shoes

Range of adjustability on the podium should be:

914.72mm + 25 mm = 939.72mm

1085.28mm + 25 mm = 1,110.28mm

939.72mm – 1085.28mm or 3.08 ft  – 3.56 ft

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