SPD Flashcards
To achieve effective drainage away from a structure, what is the minimum slope for a paved area?
1% (1.5% for rough paving)
To achieve effective drainage away from a structure, what is the minimum slope for an underground drainage pipe?
.3%
To achieve effective drainage away from a structure, what is the minimum slope for a lawn?
2% - ideal slope 4%
P.U.D.
Planned Unit Development
The goal of PUD is to integrate mixed use development and promote a vital and diverse community.
Describe Ahwahnee Principles.
Collective vision of how urban and suburban planning should follow certain fundamental principles regarding community size, integration, transportation, open space, pedestrian paths, native vegetation, water and energy usage.
Describe Hannover Principles.
For EXPO 2000 (in Hannover, Germany), William McDonough presented a living document called Design for Sustainability in which principles set priorities for sustainability in the built environment and where to be implemented globally.
When tall buildings act as wind breaks, what condition may be created?
Vortex
How does a monument impact a land survey?
It represents a reference point.
Define: Well-Graded soils
Has a good representation of all particle sizes, in proportionate quantities, from the largest to the smallest generating stability through increased grain-to-grain contact
Define: Uniformly-Graded soils
Consists primarily of particles that are all approximately the same size. (a type of poorly graded soil)
Define: Gap-Graded soils
Consists of both large and small particles but the continuity of gradation is interrupted, typically by the absence of intermediate-size particles (type of poorly graded soil)
The Piazza of Saint Peter at the Vatican is an example of what type of planning?
Renaissance planning, space was created amid a cramped medieval town for a grand piazza, where a more modest square once stood. (designed by Bernini)
What is the correct vehicular dimensional data for:
-sq.ft. required per car for parking and circulation
400 sq.ft.
What is the correct vehicular dimensional data for:
-standard parking stall dimension
8-9’ x 16-18’
What is the correct vehicular dimensional data for:
-minimum width of a two-way main aisle between 90º parking stalls
20’
What is the correct vehicular dimensional data for:
-compact parking stall dimensions
7’-6” - 8’ x 16-18’
What is the correct vehicular dimensional data for:
-minimum distance between driveway and intersection depending on speed and capacity of road
50-200’
What is the correct vehicular dimensional data for:
-accessible parking stall width
cars: 8’ + 60” for an aisle
vans: 8’ + 96” for an aisle
What is the correct vehicular dimensional data for:
-minimum width of a two-way driveway
16’
What is the correct vehicular dimensional data for:
-minimum angle of a road at an intersection
70º
What is the correct vehicular dimensional data for:
-minimum width of a one-way driveway
10’
A permeable stratum of soil material that allows the passage of water under ground and is the water source for wells.
Aquifer
The study of the occurrence, movement, and quality of water on a site. Concerned with water forms, drainage patterns, runoff, water table and aquifer zones.
Hydrology
An elevated artificial channel that carries fast moving water and is used to transport such items logs or fish, or to divert a stream.
Flume
Water that drains in a thin layer across a sloped surface, pavement, grass or landscape. The runoff is directed to a gutter or channel and then storm sewer or natural water course.
Sheet Flow
An embankment, levee or dam formed to hold a river or stream or divert a flow of water.
Weir
A type of above ground drainage used to control runoff. A shallow, sloping sometimes grassy depression incorporated into landscaping.
Swale
What is the purpose of creating an artificial flood plain?
To reclaim build able land that was previously part of the natural flood plain.
Name several methods used to control erosion, due to runoff or wind, during construction.
Silt Fence
Straw Bale Dams/Earth Dikes
Hydroseeding or Mulch
Retaining Walls
What are the four main site factors that affect the physical for of a building?
Site to Structure Relationships
Site to Form Relationships
Vegetation
Climate
What aspects of urban site development are of particular environmental concern?
Impact of the building on the microclimate and other surrounding buildings including shade patterns, wind patterns, drainage patterns, noise, traffic, and possible industrial emissions.
Temporary seeding with quick sprouting annual grass
Hydroseeding
What are the negative aspects of building a freeway through a town?
Tends to destroy or segregate large parts of existing neighborhoods.
According to the Unified Soil Classification System (USC), how are soils classified?
By grain size as well as other physical characteristics. 3 main categories: Course-Grained Soils, Fine-Grained Soils, Highly Organic Soils
Ecology
The study of living organisms in relationship to their environment.
Name the three types of site circulation and how they can be organized.
Pedestrian, automobile, service
Separate the automobile entrances from pedestrian paths.
Layout pedestrian paths adjacent, and parallel to parking areas.
Separate automobile entrances from service entrances.
What city diagram first separated housing and industry with a beltway?
Ebenezer Howard’s Garden City
Which of the following might be used to restrict the construction of a mobile home on a particular tract of land?
- easement
- lien
- covenant
Covenant, also called a restrictive covenant, is a type of deed restriction.
Philadelphia is based on what form of urban plan?
- radial layout
- Haussman’s design for Paris
- The gridiron street system
- The Garden City concept
The gridiron street system, incorporates public parks and open spaces as well as uniform spacing and setbacks.
In order of grain size, name the four primary soil types.
Gravels, sands, silts, clays
This is the term for the distance between contour lines?
Contour Interval
What factors affect a building’s plan orientation, besides climate?
The building’s relationship to the street.
The orientation of nearby structures.
The aesthetics of the site.
According to the IBC, the number of accessible parking spaces for a project depends upon which of the following?
- total number of spaces provided
- area of the parking
- type of facility
- distance to the main entrance
- total number of spaces provided
- type of facility
Kevin Lynch describes the five basic elements that make up one’s image of the urban environment in his book The Image of the City. What are they?
Paths Edges Districts Nodes Landmarks
Describe the City Beautiful Movement
Championed by advocates such as Daniel Burnham, who sought to improve the socially, morally and physically decaying cities through beautification and order. Burnham thought this would inspire a sense of community, responsibility and civic loyalty among the inner-city poor, thereby revitalizing urban life.
Rome is an example of which of the following types of city planning?
- star shaped
- grid city
- Renaissance
- Baroque
Baroque Planning, links important monuments, places and views with broad radiating streets and avenues.
What are the key concerns to address when construction requires the manipulation of existing topography?
- modifications to site contours should be kept to a minimum whenever possible
- locate the length of the building parallel to contour lines
- place driveways and roads parallel to contour lines or when changes in elevation are required, do so at a slight angle to the contours.
- divert drainage away from the building.
Used to determine drainage potential, bearing capacity and erosion potential. Classified by grain size and physical characteristics
Uniform Soil Classification System (USC)
Soil, sand or mud deposited by flowing water.
Alluvium
The most stable soil type.
Bedrock
Soft dark soil containing decomposed organic matter, poor bearing capacity.
Humus
Rich soil containing equal parts of sand, silt and clay.
Loam
Proctor Test vs. Percolation Test
Proctor- used to determine the optimum relationship between moisture content and compaction of soil
Percolation- used to determine the rate at which soil absorbs effluent. Assesses the suitability of soil for a leachfield.
The construction of a new library building is planning for a site adjacent to a noisy boulevard. What design options does the architect have for reducing the impact of noise?
- construct an earth berm between the noise source and the building
- plant a dense line of trees between the noise source and the building
- use plant material as ground cover instead of hard paved surfaces
- locate mechanical, service and utility areas closer to the sounds source
- locate major wall penetrations away from the sound source
The layout of Central Park by Olmstead (1857) is an example of what style of landscape design?
- neo-classical
- picturesque
- baroque
- Beaux Arts
Picturesque
What typical site constrains affect a grading plan?
- existing trees and shrubs to be saved, transplanted or removed.
- the finished floor height of existing structures
- the finish grade of existing roads
- existing land forms
- property line
How can the site be graded to avoid damage to trees?
No grading should occur under the drip line
The boundary between aerated and water-saturated soil. The plane may rise and fall seasonally. Same as ground-water level.
Water table
A reservoir in which debris and sediment from runoff may settle before it enters the storm drain.
Catch Basin
The lowest point or lowest inside surface of a drain, sewer, pipe or other plumbing line. For drains and sewers, this point must be established due to the dependence on gravity.
Invert
A drain or channel that permits the passage of water below ground. Typically, a large-diameter concrete or metal pipe often used to channel water under a road.
Culvert
Underground conduit used to carry rainwater, not sewage from a catch basin to a paved channel or body of water. Controls runoff and erosion in high-density areas with impervious surfaces. Diameter is determined by the region’s rainfall in in/hr
Storm Drain
A perforated pipe surrounded by granular fill used to relieve hydrostatic pressure from foundation or retaining walls.
Drain tile
Vehicle Turning Radii
small cars- 16-19' standard cars- 19-23' large cars- 23-25' ambulance- 25-30' busses/trucks- 43-50'
Order of site work
- Set batter boards
- Remove and save top 6” of soil
- Earth work- grading and excavation
- Rough grading
- Finish grading
Name five methods of improving soil bearing capacity.
Fill, compaction, densification, surcharging, mixing
Describe the best way to provide security and promote a sense of safety for the occupants of residential buildings.
window bars, security alarms
street activity, front porches and visible to one another (passive surveillance)
Describe some methods of stormwater management in site planning.
minimizing impervious surfaces, work with existing natural drainage systems (swales, buffers, biofiltration strips or bioretention zones filter pollutants)
Angle of repose
The greatest angle at which soil will lay without sliding.
- loose, wet clay or silt 30%
- compact dry clay 100%
- wet sand 80%
- dry sand 65%
Soldier Beam
a heavy timber or steel column driven vertically into the soil and used to hold cribbing boards in place.
Cribbing
horizontal boards placed between soldier beams used to hold soil in place during excavation. (also called breast boards)
A horizontal brace of steel or timber used to support sheathing, or other members such as concrete formwork. Holds vertical members and form work in line.
Wale, waler or whaler