Lesson 12 - Site Analysis

Question 1

A small scale map displays…

Answer 1

large land area with very little detail.

Question 2

A large-scale map shows…

Answer 2

a limited land area in great detail.

Question 3

The USGS uses what scale?

Answer 3

1:24,000 scale.

Question 4

How do you convert scale? EG. Convert 1:2,000,000 to linear miles?

Answer 4

Divide 2,000,000 inches by 12 (12” in 1’). Then divide by 5,280 (feet per mile) = 31.57.

Question 5

What are three basic types of map projection (project onto flat surface)

Answer 5

conic, cylindrical, planar

Question 6

Contour lines

Answer 6

lines of equal elevation

Question 7

contour interval

Answer 7

distance between contour lines

Question 8

What are general slope guidelines for urban development?

Answer 8

0-0.5% = no drainage, not suited for development;
0.5-1% = no problems, ideal for all types of development;
1-3% = slight problems for large commercial areas; acceptable for residential;
3-5% = major problems for commercial/industrial/large scale residential;
5-10% = suitable only for specially designed development.

Question 9

Floor area ratio FAR

Answer 9

It is obtained by dividing the gross floor area of a building by the total area of the lot.

For instance, if a 20,000-square-feet parcel has a FAR limit of 0.5, then the floor area of the building or house on the site may not exceed 10,000 square feet. This FAR could be achieved with either a single-story, 10,000-square-feet structure or a 2-story structure with 5,000-square-feet per floor.