future city competition - florida international...
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FUTURE CITY COMPETITION
The use and application of SCALES
for design and construction of a model
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What is a Scale? Mathematical RATIO (3D) Exact RELATIONSHIP True REPRESENTATION
(at a smaller or larger size from the original)
Exact PROPORTION between two objects
Example: Chrysler Building 405 Lexington Avenue, NY, NY
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How are Scales Used?
To communicate VISUALLY To DETAIL critical aspects To easily MEASURE distances To QUICKLY determine distances To ACCURATELY determine distances (can
be done to 1/10th of 1 % or better) To RECORD events To visualize GEOGRAPHIC relationships
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TYPES OF SCALES
ENGINEERING ARCHITECTURAL METRIC MAP SCALES (mix of units) – Use
projections from spherical to 2D LOGARITHMIC (used for large
differences in order of magnitude) OTHER
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Sizes and Shapes
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Standard Engineering Scales 1”=10’* (also 1”=100’, 1”=1,000’, etc.) 1”=20’ (also 1”=200’, etc.) 1”=30’ (also 1”=300’, etc.) 1”=40’ (Same as above) 1”=50’ (SAA) 1”=60’ (SAA)
* Commonly expressed as “10 foot scale”
Note: 1”=10’ 1/120th of original
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Engineering Scales
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Engineering, Continued
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Engineering, Continued
• Height to the top of its spire is 1,048 feet
• Scale is 7.5 inches
1048 / 7.5 = 139.7, use 140 >>> Scale: 1”=140’
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Standard Architectural Scales 1”=1’-0” * ½”=1’-0” ¼”=1’-0” 1/8”=1’-0” 1/16”=1’-0” 1/32”=1’-0”
* Commonly referred to as “One-inch scale”
Note: 1”=1’-0” 1/12th of original
3”=1’-0” 1-½”=1’-0” 3/4”=1’-0” 3/8”=1’-0” 3/16”=1’-0” 3/32”=1’=0”
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Architectural Scales
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Architectural, Continued
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Common Metric Scales 1:100 * (also 1:1,000, etc) 1:125 1:150 1:200 1:250 1:300 1:400 1:500 1:600 1:750
* Expressed as “100 meter scale” Careful: 1:100 can mean 1/100 or 1/10,000
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Metric Scale, Continued
• Height to the top of its spire is 1,048 feet = 301 meters
• Scale is 18.9 cm = 0.189 m
301 / 0.189 = 1592, use 1600 >>> Scale: 1 : 1,600
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Common Map Scales 1”=1 mile, 1.5 mile, 5.3 miles, etc. 1”= approx. 45 miles, 130 miles 1”=1.3 nautical mile * 1:24,000 (USGS 7.5 minute series) 1:1,000,000 (photogrammetry) Mercator Projection (variable scale) Other Projections: Cylindrical,
Conical, etc.
* 1 Nautical mile = 1.15 statute miles
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Which Scale to Use?
Any of the above. • 6 engineering • 12 architectural • 6 metric
None of the above
What Scale to use for the Model? You decide .
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Selecting a Scale 1. Determine the dimensions of the city section that
will be displayed (consider all 3 dimensions) • DECIDE HOW LARGE AND HOW SMALL AREA OF YOUR CITY YOU WILL
WANT TO DISPLAY. • FIND THE HEIGHT OF THE TALLEST BUILDING OR LAND FEATURE WITHIN
THAT AREA AND ITS HEIGHT.
2. Size of the presentation model (and determine the most critical dimension)
• 30” W x 60” H x 24” H; example: you need to fit 2,000’ into 24” high. • Do your math: 2000/24=83.33. Try a 1”=100’ scale. The building will be
2000/100=20, or 20” high. With the base of the model, will that be <24”?
3. Confirm that all of the dimensions work and you will not be able to show all that you want or need, and that none of the model dimensions will be exceeded.
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Your Future City Scale Work with your Mentor Ask your Mentor to suggest 2 or 3 scales for you to
try on your model Don’t be afraid to use a non-conventional scale
(such as 1’=333 ft) But be consistent in your selection If one component of your model doesn’t fit…don’t
worry too much. Always display your scale on your Model (use the
4” x 6” card) For extra points, show a GRAPHIC scale
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GOOD LUCK !!!
AND BEST WISHES IN YOUR ENGINEERING ENDEAVORS
© Rod Rodriguez (2003-2014)