Flashcard 2

Front 1

Successful urban plaza design details

Back 1

1. Diminish reflected with light colored pavement and vegetative ground plane

2. Shading trees for shading

3. Variety seating

Front 2

Septic system requirement

Back 2

1. Requires 2+ acres

2. Discharges into underground drain field

3. Soil must be pervious

4. Slope less than 15%

Front 3

How an urban plaza can attract users

Back 3

1. Water

2. Food

3. People

Front 4

Desired ration of enclosure

Back 4

Width is 2-3x the height.

Front 5

Fire hazard

Back 5

any material condition or act that contributes to the start of a fire or that increases the extent or severity of fire

Front 6

Relative humidty

Back 6

Amount of water vapor in a mixture of air and water vapor

2. Forecasts weather (predicts rain, dew or fog)

3. prevents evaporation of perspiration

Front 7

Angle of repose

Back 7

1. The maximum angle at which a pile of unconsolidated particles can rest

2. Fine sand: 35 degree

3. Coarse sand: 40 degree

4. Angular pebbles: 45 degree

Front 8

Erosion examples

Back 8

1. Landslides

2. Soil slip

3. Dry creeps

4. Rill erosion

5. Sheet erosion

Front 9

Rill erosion

Back 9

Concentrated erosion formation of numerous small channels oly several inches deep

Front 10

Sheet erosion.

Back 10

1. The process by which water flows over a layer of soil and removes the topsoil

2. Removes a relatively uniform soil layer

Front 11

Dry creek

Back 11

1. Happens on steep slopes without vegetation

2. Gravity (not water) moves dry soil

Front 12

Landslides

Back 12

1. Occurs when soil in slopes become saturated with water

2. Mud is more susceptible to gravity

Front 13

Soil slippae

Back 13

Similar to landslides but less severe