SPD - AREndurance Flashcards
Zoning
- Uniform standards of construction originating in NYC in 1916 to protect the health, welfare, and safety of people
- Regulates the use of land, light, air, and open space while protecting property values and protecting and nuisances, undesirable businesses, and dangers
Incentive Zoning
Encourages private developers to provide amenities for public use in exchange for the opportunity to build larger or taller structures on a site
Nonconforming Use
Building is no longer permitted by the zoning ordinance, but typically allowed to stay unless it’s unsafe
Conditional Use
Building that is permitted in an area that it is not zoned for, to benefit the public
Variance
A request by an owner on a private site for a deviation from an ordinance or code in order to avoid hardship. Two types: area variance and a use variance.
Spot Zoning
A change in the zoning ordinance for a particular area. The result of either a conditional use permit or a use variance.
Ordinance
A municipal law
Setbacks
Required open space measured between property line and face of building
Building Line
Utilized by communities principally to achieve planned street patterns by insuring building will not be erected in certain areas.
Easement
Legal right of government or another land owner to use someone else’s property for a specific purpose
Scenic Easement
Prevents development that upsets something scenic to the public
Assessment
Valuation of property for the purpose of taxes
Business Improvement Districts
Use to fund public space improvements with the intention that it will enhance an area’s appeal. All business owners who would benefit pay increased taxes
Eminent Domain
Power of the state to take private property without owner’s consent, but with fair market value of the land compensation. Must be used for government or public development (highways, railroads, civic center), economic development, or to mandate an easement for access
Deed Restrictions
Limitations on the use of the property, typically by original developers, who determined what land would be used for (live, work, or play) and can’t be changed by future owners
Restrictive Covenant
Limitations and stipulations used in residential settings. Can be aesthetic (vegetation types, allowable colors), pet control (dogs/cats), or storage related (visibility of parked cars)
Affirmative Covenant
The covenanter binds himself to performing a duty that has already been done or shall be done to the future (i.e. payments for updates made to common spaces in condo)
Conditional Covenant
If restriction is violated or disregarded, the land will revet back to original owners/heirs
Covenant
A type of contractual agreement.
Negative Covenant
The covenanter binds himself to having not performed a duty and agreeing to not perform it in the future.
Right-of-Way
A type of easement that gives a party the right to a make way over a piece of land. Usually it is granted for transportation purposes (highway, public footpath, canal, railway, electrical lines, gas lines, etc)
One Acre
43,560 SF
US Survey System
In the 1780s, the US divided land that was not already surveyed into a square grid system
- Check: 24x24 mi.
- Township: 6x6 mi.
- Section: 1x1 mi.
- Quarter Section: 1/2x1/2 mi.
Space/Site Planning Heirarchy
- Total Building Group
- Component Building
- Activity Center
- Space Unit
Example: Medical Campus > Acute Care Hospital > Surgery Dept. > Pre-Op Suite
Roman Roads
Cardo: The main road, rain N-S, root of the word caridinal
Decumanus: The secondary road, ran E-W
Loop Road
A collector/distributor road into into a main center (i.e. shopping)
Color
Visual perception of reflected light that articulates form and space
Light
Radiant energy that is perceived by the human eye
Local Road
Low capacity roads with direct access to a site
Collector Road
Connection roads between local and arterial streets
Arterial Road
Wide high capacity streets usually connecting to expressways
Expressways
Limited access roads with high speed, high volume circulation
Road Hierarchy
- Local
- Collector
- Arterial
- Expressway
Example: Buckingham/Carillo > Bolling > Hampton Blvd > I-64
Site Slope Percentages
Flat Area: <4%
Moderate: 4-10%
Steep (Unusable): 10-50%
Very Steep (Subject to Erosion): +50%
Construction Slope Percentages
- Storm Drain: _____
- Sanitary Sewers: _____
- Street Surface Drainage: _____
- Planted or Large Pavers: _____
- Lawns: _____
- Planted Banks: _____
- Parking Area/Lot: _____
- Automobile Ramps: _____
- Sidewalks: _____
- Streets: _____
Construction Slope Percentages
- Storm Drain: 0.3% min
- Sanitary Sewers: 0.4-1.4%
- Street Surface Drainage: 0.5% min
- Planted or Large Pavers: 1% min
- Lawns: 25% max
- Planted Banks: 50% max
- Parking Area/Lot: 5% max
- Automobile Ramps: 8% max
- Sidewalks: 10% max
- Streets: 10% max
Angle of Repose
- Loose wet clay or silt: _____
- Compact dry clay: _____
- Wet sand: _____
- Dry sand: _____
Angle of Repose
- Loose wet clay or silt: 30%
- Compact dry clay: 100%
- Wet sand: 80%
- Dry sand: 65%
Angle of Repose
The greatest angle at which a material can be piled without slumping/sliding
Gross Area
Net Area + Circulation
Floor Area Ratio (FAR)
Gross Area / Site Area
Example: If gross is 4000 SF and the site is 1000 SF, then the FAR is 4
Cartridge Road
A loop collector/distributor drive with access to the local road
Traffic lights are required when…..
…..An intersection receives more than 750 cars per hour
A grade separation interchange is required when……
…..An intersection receives more than 3000 cars per hour
3 Types of Grade Separation Interchanges
- Cloverleaf: 2-level interchange that handles expressway intersections
- Directional / Direct Left Turn / Stack: used when 2 high-volume expressways intersect
- Diamond: used when an expressway intersects a secondary road
Maximum Length of a Block
1600’
Cul-De-Sac Max Size
400’ long with 40’ radius turn around
Width of 2 Lane Highway with 9’ Shoulders
40’-42’: 9’ shoulder, 11-12’ lane, 11-12’ lane, 9’ shoulder