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Exac > 2-Site & Environmental Analysis > Flashcards

2-Site & Environmental Analysis Flashcards

1
Q

Define “Easement”

A

Legal right to make limited use of the land of another as for right-of-way or as for light and air

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2
Q

Define “Right-of-way”

A

Legal rights granted to a party or public to traverse another’s land as for access to or the construction and maintenance of utility lines

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3
Q

Is building height restricted by municipal bylaws, Building code, or both?

A

Both

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4
Q

Are projections allowed in the setbacks?

A

Most likely. There might be a maximum though. To be check with the bylaws

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5
Q

What is a legal description? What’s in it?

A

description of real estate that can sufficiently identify it for legal purposes.

A professional land surveyor, as impartial 3rd party, creates legal descriptions of property.

example:

SE-12-20-33-W1

South East quarter of Section 12,

Township 20, Range 33, West of the first meridian

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6
Q

What is bonusing? What is a synonym of bonusing?

A

Bonusing (also called Floor Area Relaxation (FAR)): Way to get higher density in exchange for amenities, affordable housing, public space, public art, etc.

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7
Q

Why do a city manage its growth?

A

Make sure the services and infrastructures can support the new building

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8
Q

Why do the water table height is important for the evaluation of the site?

A

Water decrease the bearing capacity of the ground. It will therefore have an influence on the foundations of the building. Excessive water at the foundation will increase the hydrostatic pressure on the foundation (increase the risk of infiltrations).

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9
Q

True or false? Close contour lines mean a gentle slope.

A

False. Close lines=steep slope; spaced lines=gentle slope

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10
Q

Why is the site drainage essential?

A

to prevent erosion and collect/redirect excess of water (surface water or groundwater) from the building.

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11
Q

Define Subsurface drainage.

A

Networks of pipes directing underground waters to a point of disposal. Storm sewer water or natural outfall at a lower elevation.

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12
Q

Define surface drainage.

A

grading and surfacing of a site to divert rain and other surface water into natural drainage patterns or municipal storm sewer system

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13
Q

What is a dry well?

A

Drainage pit lined with gravel or rubble to receive surface water and allow it to percolate away to absorbent earth underground.

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14
Q

What are the recommend slopes for swales (grass and paved)?

A

Grass swale: 1.5-2%
Paved swale: 4-6%

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15
Q

What is a French drain?

A

Trench filled to ground level with loose stone or rock to redirect water and protect an area (usually foundations).

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16
Q

True or false? seismic considerations are part of a geotech report?

A

True

17
Q

Which is not part of a survey? Erosion channels, elevation of floors of adjacent building, contaminated soil, setbacks from property line

A

Contaminated soils

18
Q

The design for a new building requires the building to be located 3.79 m from a side property line. The zoning bylaw requires a 4.0 m side yard setback. Which of the following is an appropriate procedure to address this non-conforming setback?*
A) Proceed as designed because the variance is within 5% of the requirement
B) Proceed as designed because the variance is within 10% of the requirement
C) Seek approval for a revision to the Official Plan
D) Seek approval for a variance of the specific requirement of the zoning bylaw

A

D) Seek approval for a variance of the specific requirement of the zoning bylaw

19
Q

Which is included in a geotech report?
A) Surface condition, Hazardous materials, Settlement considerations, methane & radon considerations
B) Surface considerations, settlement consideration, legal description, methane & radon considerations
C) Surface considerations, settlement consideration, legal description, underground services
D) Surface considerations, settlement consideration, property lines, methane & radon considerations

A

B) Surface considerations, settlement consideration, legal description, methane & radon considerations

20
Q

What’s in a land survey? (15)

A
  • Ground elevation (Legal description, Property lines, Dimensions)
  • North indicator
  • Topography (Contour lines, Erosion channels, Ditches and swales)
  • Built surfaces (Existing structures, poles, fences, Hard surfaces,Landscaping, water bodies)
  • Underground services (Electric, phone, tv, water gas, Sanitary, Sewer, Other pipeline, tunnels)
  • Streets & sidewalks
  • Material
  • Locations, elevation
  • Inverts, manholes, catch basins
  • Adjacent properties
  • Easements
  • Rights-of ways
  • Elevations
  • Spot elevations to indicate surface drainage
21
Q

Describe the impact of universal accessibility on site design.

A

Barrier free circulation must be planned throughout the project from site to emergency exits.

Site:

  • Parking, width and location
  • Curbs
  • Type of surface, slip-resistance
  • Path of travel
  • Turnaround width
  • Slopes
22
Q

What are the % slope for impervius, permeable and swale

A

Impervious surfaces
-2% min
-2-3% Recommended
Permeable surfaces
-5% min
-1.5-10% Recommended
Swale: depression formed by the intersection of two ground slope designed to redirect or divert runoff of surface water.
-Grass swale: 1.5-2%
-Paved swale: 4-6%

23
Q

List the physical factors related to site planning. (chop)(6)

A
  1. Climate
  2. Topography
  3. Geo / Soils
  4. Utilities
  5. Immediate Surroundings
  6. General Services
24
Q

List the cultural factors related to site planning. (chop)(3+2)

A

CULTURAL

  1. Site History
  2. Land Use, ownership / control
  3. Economic Value
  4. Archeology research
  5. Existing building
25
Q

List the regulatory factors related to site planning. (chop)(4)

A

REGULATORY FACTORS:

  1. Zoning Codes
  2. Subdivision, Site Plan, local requirements
  3. Environmental Regulations
  4. Other Codes, bylaws, requirements
26
Q

List impacts of wind on a building/site (5)

A
  1. Positive pressure on windward side & negative pressure (suction) on Leeward side.
  2. Outlets as large or larger than inlets for MAX AIRFLOW • Roof overhangs increase air intake
  3. Window overhangs direct air up
  4. Windbreaks on windward side key in cold climates
  5. Wind shadow on windward and leeward side of any break or building
27
Q

How would you calculate a windward & leeward wind shadow created by a wind break? What 2 eddys are created on either side?

A 
Windward = 2-5\*H & creates a pressure eddy
Leeward = 10-15\*H & creates a suction eddy
28
Q

Describe the Azimuth / Altitude / Solstice / Equinox.

A

Azimuth - angle of deviation from true south along the horizon

Altitude - angular elevation of sun above horizon (rise of the sun into the sky )

Solstice - Shortest(W) or longest(S) path of sun from East to West

  • Winter = closest to South/lowest altitude
  • Summer = furthest to South/highest altitude

Equinox - Fall / spring = btwn winter / summer

29
Q

What is the effect of large bodies on water on or near a site?

A
  1. heat reservoirs (Suck up heat during day and radiate heat at night)
  2. Provide evap cooling effect
  3. Increase wind load ( salty= corrosion)
30
Q

For a TEMPERATE climate type (Region) describe the ideal form and orientation for a building:

A
  • Minimize E/W Exposure as they are cooler in winter & hotter in summer

Form: RECTILINEAR

31
Q

List the following grade slopes and their implications on building construction:

  1. Max slope before activities are difficult
  2. Ideal range for activities
  3. Max. slope before erosion occurs
  4. min slope for drainage
  5. Range where activities are not too difficult
A
  1. >10% (expensive to build on)
  2. <5% (easy to build on)
  3. 25% (hard to build on)
  4. 1-2%
  5. 5-10%
32
Q

What effect will vines have on a building? (3)

A
  1. reduce heat gain on walls
  2. provide shade
  3. provide evaporative cooling
33
Q

List the 8 key pieces of information found in a geotech report:

A
  1. Bearing capacity of soil
  2. Foundation design recommendation
  3. Seismic recommendations
  4. Compaction of soil
  5. Lateral strength (active/passive, coefficient of friction)
  6. Permeability
  7. Frost Depth
  8. Methane & Radon considerations
34
Q

List 5 major types of information provided in an ENVIRONMENTAL REPORT.

A
  1. Physical environment - existing structures, grades, surrounding uses, wells
  2. Geology, Hydrology & morphology
  3. Flora/fauna & Biophysical wetlands, drainage, wells, sewage, flooding
  4. Historical Uses - maps/aerial photos etc
  5. Presence of contamination: Hazmat, PCB, ACMs, ASTs, USTs, Radon, Lead, Waste
35
Q

What is considered a high water table and how can it be mitigated?

A

High Water Table (6-8’ below grade) -

  • Dewater & Granular Fill required
36
Q

What is considered POOR SOIL on a geo report and how can this be mitigated?

A

Poor Soils: Peat, clay, silt, or fine water bearing sands.

  • Pile foundations

Exac (22 decks)

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