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ARE 5.0 PPD > Site > Flashcards

Site Flashcards

1
Q

Runoff

A

Stormwater that accumulates on the site in excess of what can be absorbed by the ground.

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2
Q

What are the two types of drainage systems?

A

Above ground drainage systems: previous paving, sheet flow, gutters, ground swells, channels.
Underground drainage systems: Perforated drain, enclosed storm swers, natural drainage outlet.

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3
Q

Sheet flow

A

Water that drains across a sloping surface, whether the surface is paved, grassy or otherwise landscaped.

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4
Q

Storm drain

A

Collect water from roof downspouts, catch basins, and drain tiles surrounding the building foundation.

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5
Q

Drain inlet

A

An opening in the ground that allows storm water to run directly into the storm sewer, the opening is usually covered with metal grate for safety to keep out debris.

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6
Q

Catch basin

A

An underground reservoir that has a sump built into it, debris settles into the sump instead of flowing Down the sewer and potentially clogging the pipes.

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7
Q

Spacing of manholes

A

Manhole Access are located wherever the sewer changes direction or a maximum of five hundred feet apart.

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8
Q

Runoff coefficient

A

Fraction if water not absorbed.

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9
Q

100 year storm
25 year storm
10 year storm

A

1% probability
4% probability
10% probability

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10
Q

Holding pond

A

Collects excess runoff that municipal storm sewer cannot accept, and releases it at a controlled rate.

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11
Q

Minimum slope of bldg sewer:

A

2%-5% depending on pipe sizing.
Greater slope is required for smaller pipe & vice-versa.

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12
Q

Maximum slope for a road:

A

15% for short distances but 10% or less is preferred.

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13
Q

Cross slope of a road:

A

1/4 inch per ft or 2%

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14
Q

Roadway gutter depth

A

6” deep

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15
Q

Sidewalk slopes

A

5% max running slope
2% min perpendicular slope

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16
Q

Curb cut ramp slopes

A

Access ramp 1:12 max (8%)
Sides 1:10 max (10%)

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17
Q

Stair reqirements

A

34-38 inches high
7” rise 11” run

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18
Q

Standard car stall

A

9’-0” x 19’-0”

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19
Q

Compact car stall

A

7’-6”x15’-0”

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20
Q

Most efficient parking layout

A

90° double loaded aisle (62’ stall to stall edge, 24’ aisle)

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21
Q

Parking SF per car

A

300-400

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22
Q

Typical ADA parking stall

A

8’-0”x19’-0” with 5’ aisle

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23
Q

Van ADA stall

A

8’-0” x 19’-0” with 8’ aisle

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24
Q

Drainage in parking area

A

1.5% - 5% (2%-3% typ)

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25
Q

Typical change in elevation at double loaded 90° parking

A

Max 3’

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26
Q

PUD

A

Planned Unit Development

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27
Q

External-load/skin-load dominated building

A

When a building’s energy use is determined mainly by the amount of heat loss or gain through its exterior envelope.

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28
Q

Internal-load dominated building

A

A building Whose energy use is driven by high heat gain from occupants, lighting, and equipment.

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29
Q

Building shape in cool & cold regions

A

Cubic

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30
Q

Building shape in temperate climates

A

Shape not as crucial, but oriented long axis east/west

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31
Q

Building shape in hot-arid region

A

Square with open courtyards for external heat loaded. Multistory for internal loaded building.

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32
Q

Building shape in hot-humid region

A

Elongated in east/west, with courtyards and overhangs.

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33
Q

Shading south facing facades

A

Overhangs or horizontal louvers

34
Q

Shading east and west facing facades

A

Vertical louvers

35
Q

Infiltration and exfiltration

A

The movement of air into and out of a building by natural means rather than through mechanical ventilation. Caused by differences in pressure between the indoor and outdoor air; these differences can be caused by a combination of wind, stack effect, mechanical system in the building, and other factors.

36
Q

Stack effect

A

The difference in pressure between the top and bottom of a building due to temperature differential.

37
Q

Air barrier

A

Part of a building envelope system that controls infiltration. It consists of materials, components, and assemblies on all vertical & horizontal surfaces exposed to the exterior.

38
Q

Vapor-impermeable barrier

A

Acts as both an air barrier and a vapor retarder.

39
Q

Vapor-permeable barrier

A

House wrap, polyethylene, elastomeric coatings, liquid-applied spray-on, or trowel on materials, etc.

40
Q

Premience

A

A measure of how readily a material or membrane allows water vapor to pass through. The unit of permience is the perm, which is one gram of moisture per hour per square foot per inch of mercury difference in vapor pressure.

41
Q

Minimum permeance of an air barrier

A

5 perms or greater

42
Q

Appropriate soils for earth-sheltered designs

A

Gravel, sand, and sandy loam. Clay soils are not appropriate for earth-sheltered designs because they do not drain well and can expand with moisture.

43
Q

Extensive green roofs

A

Soil is less than six inches deep. It is capable of supporting meadow grasses, sedums, herbs, and perennials.

44
Q

Intensive green roofs

A

Soil depth Twelve inches or more and support complex landscapes, including shrubs and small trees.

45
Q

EFVM

A

Electric field vector mapping.
A Waterproofing test for green roofs where the growing medium is wet to provide an electrically conductive layer and the deck is grounded. A leak will cause electric flow from the growing medium to the deck below.

46
Q

SHGC

A

Solar heat gain coefficient.
The amount of solar radiation that is transmitted through the entire window assembly is expressed as a fraction of the total amount that strikes it.
A value of 1 means all solar radiation passes through, and 0 means none passes through.

47
Q

Spectrally selective glazing

A

Transmits A high proportion of the visible solar spectrum while blocking up to 80% of the heat from the infrared portion of the spectrum.

48
Q

Daylight factor

A

The ratio of illuminance at a point on a horizontal surface indoors to the aluminums at a point on the horizontal surface outdoors, measured at the same time under overcast skys.

49
Q

Window to Wall Ratio (WWR)

A

The net glazing area in a room or space divided by the gross exterior wall area. Not inclusive of millions or frames.

50
Q

VLT

A

Visible light transmittance.
The percentage of visible light that passes through a glazing material.

51
Q

Direct gain systems

A

Collect heat through south facing glass and then store this heat in a high mass materials, such as concrete floors masonry walls tilesstone and terrazo.

52
Q

GSHP

A

Ground source heat pumps are electrically powered systems that work like air source heat pumps by either extracting heat from the ground in winter or giving off excess heat to the ground in the summer.

53
Q

Acidification

A

The generation of waste materials that can lower the ph of surrounding waterways or soil.

54
Q

Eutrophication

A

The formation of excessive nutrients in a body of water that promotes increase algae growth.

55
Q

Embodied energy

A

Energy used for extraction, processing, manufacturing, & transportation to the site.

56
Q

Renewable materials

A

Materials sourced that can renew themselves in a short time through new growth.

57
Q

Benefits of fly ash concrete admixtures

A

Increased concrete strength, decreased permeability, reduce temperature rise while pouring, increased sulfate resistance, and improved workability.

58
Q

AAC

A

Autoclaved aerated concrete.
Lightweight, precast concrete made with aluminum powder as an extra ingredient. Hardened in molds and cured in an autoclave (steam filled pressure chamber).

59
Q

Waterproofing

A

The control of water and moisture that is subject to hydrostatic pressure. It can refer to the application of water tight membranes, water stops, or bentonite panels when building below the water table.

60
Q

Vertical Soldier Beams

A

A deep excavation would require the use of vertical soldier beams supporting horizontal timber breastboards or cribbing. The vertical soldier beams must be anchored into the adjacent Earth with grouted tieback rods. Even steel sheeting would require tiebacks for support.

61
Q

Bentonite

A

Bentonite is an expansive type of clay that can push foundations and floor slabs upward when it gets wet. To prevent this, drilled piers are used to support the building weight on bedrock or stable soil below the bentonite. Grade beams span continuously between the piers and transmit building loads from the superstructure to the piers. Voids are left below the grade beams. To allow the bentonight to expand without transmitting uplift forces.

62
Q

Caissons

A

Caisson foundations, also known as pier foundations, are prefabricated hollow substructures designed to be constructed on or near the surface of the ground, sunk to the desired depth and then filled with concrete, thus ultimately becoming an integral part of the permanent structure.

63
Q

Retention Pond

A

A retention pond, also called a wet pond or a holding pond. Prevents excessive storm water run off on-site from overloading the storm sewer system by temporarily holding the excess water and releasing it at a controlled rate until the water has lowered to reach its designed holding level.

64
Q

Bioswale

A

Site designed element to allow sediment to settle while water drains into the ground.

65
Q

Infiltration basin

A

Site designed element that retains water until it can seep into the ground. Infiltration is the process of percolating storm water into the subsoil.

66
Q

Runoff Coefficient

A

The fraction of total precipitation falling on a surface that runs off of the surface or is not absorbed into the ground.
The runoff coefficient is used to calculate the amount of runoff in cubic feet per second on a site.
Q=CIA
C= runoff coefficient
I = rainfall intensity
A = area of surface in acres

67
Q

Natural Surveillance

A

Natural surveillance relates to the ability to see into and out of an area. It involves the placement of physical features, activities, and people in ways that maximize the ability to see what is occurring in a given space, and optimize the potential to spot suspicious persons or activities.

68
Q

Territorial Reinforcement

A

Territorial Reinforcement isthe use of physical attributes that express ownership such as fencing, pavement treatments, signage, and landscaping.

69
Q

Standoff Distance

A

The space between a building and the potential location of a blast threat. For blast protection, this distance should be maximized because blast energy decreases exponentially with increased distance between the source of the blast and the building.

70
Q

Detention

A

The temporary storage of storm run off in a detention facility to control peak discharge rates and to provide gravity settling pollutants. The detention facility is designed to provide for a gradual release of stored water at a controlled rate.

71
Q

Drainage easement

A

The legal right granted by a landowner to a grantee, commonly a governmental entity, allowing the use of private land for storm water management.

72
Q

Effective aperture

A

The product of visible transmittance and the window-to-wall ratio.

73
Q

Fee in lieu

A

Payment of money by developer in place of meeting, all or part of store water performance standards.

74
Q

HSG

A

Hydraulic soil group
A classification of soils based on their potential for runoff when thoroughly wet. There are four groups ranging from Group A, which contains soil’s high and gravel and sand that have high probability and low runoff potential to Group D, Which contains clayey soils that have low permeability in high runoff potential.

75
Q

Watercourse

A

Any body of water such as a lake, pond, river, or stream.

76
Q

Waterway

A

A channel that directs surface run off to a water course or a public storm drain.

77
Q

Swale

A

Natural or human-created low tract of land that is designed to manage stormwater runoff and provide a place to filter pollutants or trap particulates, allowing water to slow seep into the ground.

78
Q

Stormwater pond

A

a basin that has a permanent pool of water. It differs from a swale or stormwater wetland in that it has a greater average depth and is covered with water all the time.

79
Q

Wetland

A

An area that is inundated or saturated b surface water or groundwater at a frequency and duration sufficient to support, and that under normal circumstances does support, a prevalence of vegetation typically adapted for life in saturated soils.

80
Q

Brownfield

A

A property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of hazardous substance, pollutant, or contaminant.

81
Q

1 Acre equals how many SF?

A

43,560 SF

ARE 5.0 PPD (5 decks)

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