LARE Section 3 Flashcards
(347 cards)
Floodway
area of the floodplain which is used to convey floodwater under 100 year flood
Ground heave
upward movement of the ground (usually associated with the clay soil expansion which swells when wet)
4 types of bikeways:
Bicycle Paths (8-12 ft)
Bicycle Lanes (5-6ft)
Ideally used on only low-speed, low-traffic streets:
Wide Outside Lanes (14ft)
- located on the right side of traffic and are intended to be shared with vehicles
Shared Roadways
-bicycles are treated as cars
Noise Barriers:
- Distance (should be constructed as close as possible to the source)
- Height (at minimum, barriers should be built to a height such that they block the line between source and receiver)
- Continuity ( Single, continuous barrier more efficient than multiple)
- Length (should generally be 1-2 times the distance between source and the barrier to minimise sound diffraction)
- Mass (Greater mass- better protection)
Surface texture impacts noise diffraction (smooth deflects more)
Vegetation make relatively poor barrier
Opinion of probable costs:
- used for construction estimates produced by designer
- Based on quantity, details, specifications
- Not authoritative, not for biding
- Produced early in the lifecycle of the project
- Will include contingency (5-10%, up to 20%)
Roadways and Topography
Parallel to the contours
+ Easy access between roads and buildings
- buildings disrupt natural drainage pattern
Perpendicular to the contours
+ Building orientation is more conducive to the natural drainage patterns
- steep roads
- awkward between roads and buildings
-costly grade changes may be required between buildings
Diagonal across contours
+ efficient storm drainage design
+ good access between the road and buildings
+ gradients less steep
+ least amount of landscape disturbance
Contingent liability (Условное обязательство)
an injured 3r party is not affected by a contract between 2 parties. Example: passerby is injured by a contractor working on an owners project, the passerby can sue the owner even of contractor is directly responsible. It is because the owner owns the site and project and passerby does not have to understand the contractual relationships to take legal action
Low Impact Development (LID)
LID is a sustainable stormwater management strategy. It emphasises holistic approach to site design and overall sustainable design to manage storm water at its source and collect rainwater for secondary use.
LID promotes a decentralised system that distributes storm water across a project site in order to replenish groundwater supplies.
Of particular concern are the rate of storm water runoff, the pollutants in the water, and recharge of water into the ground.
Environmental Impact Statements (EIS)
For large projects having a noticeable impact on the environment
National Environmental Policy Act (NEPA): Uses federal funding
Purpose: to enlarge body of fact and opinion that decision-makers have at their disposal. Typically occurs immediately after the Master Plan stage.
Goals: expose predictions, invite scrutiny & competing opinion
“Convener-picked” def
convener/person/party who organizes the public participation process select stakeholders
Basis of Design BOD
submitted at the schematic design SD phase, updated through the DD and CD
BOD - a set of documents used to formally establish a project’s design intent and used to evaluate conformance to the desired design. Make sure that projects fulfil desired functional, aesthetic, and environmental goals while being feasible, safe and cost-effective.
can include geotechnical report, budget, schedule info and other
Backflow preventer
Backflow preventer - placed at the very beginning of the irrigation system and used to protect potable water supplies from contamination or pollution due to backflow. It allows potable water into irrigation systems, but prevent from re-entering the water source
Pre-Design Goals and Activities:
Execute a contract for design services
Conduct client and user interviews
Prepare a detailed site base plan
Soils and geotechnical report
Initial project program
Code review (laws, rules, regulations)
Determine process for review and approval
Coordinate with the client estimated construction budget
Project work plan, share it with team
Regional Park amenities
- Designed to serve multiple municipalities
- Thousands of acres
- Cross multiple political boundaries
- Typically oriented around significant natural resource
- Amenities correspond to assets within the park
- Connections to major transportation network
- Integration into regional multi-user trail
- Amenities necessary for day use (restrooms, seating area, water fountains)
Functional Use Diagrams
the relationship between project elements
Quantities, Cost Estimates
Linear Feet - for linear elements (PVC, steel header, curb), cross section of this materials remains consistent
Square Feet - for fixed hardscape elements (brick, pavers, concrete)
Cubic Feet/ cubic yards - loose project materials with 3d qualities, like soil, gravel, mulch, Usually used for structural purposes and not for finish quality. Tend to be inexpensive.
Tonnage - usually used to measure stones and boulders, because they are heavy, have irregular shape, weight remains consistent regardless of weather
Woonerf
type of roadway design originally from the Netherlands, in which traffic calming measures, low-speed limits, and shared space between different road users are provided to increase safety within the right-of-way
Parks, open space and trails master plan can address
Transportation
Culture
History
Scenic
Urban Design
Environment
Recreation
Planned Unit Development (PUD)
Rezoned special districts, controlled by one entity and planned and developed as single development over a long period of time (5-15 years)
Statue of Limitations
the max time after the event when legal action may be initiated against another party. In LA it is usually 6-10 years.
Wetland Mitigation Strategies:
- A clear statement of the objectives of the mitigation
- An assessment of the wetland values or resources that will be lost and that will be replaced
- A statement of the location, elevation, and hydrology of the new site
- A description of what will be planted where and when
- A monitoring and maintenance plan
- A contingency plan
- A guarantee that the work will be performed as planned and approved.
Multi-Modal Transportation Plan contain:
Executive summary, goals, objectives
Descripton of planning and public outreach strategy
Exisitn g conditions
Summary of transportation needs
Projections of future conditions
Develop scenarios to meet future conditions
Cost implications, funding sources
Implementation [la, performance monitoring
Habitat:
-Avoid habitat fragmentation to preserve biodiversity
-Riparian corridors, wetland areas, large continuous areas - highest priority for protection
-Existing corridors require protection to maintain ecosystem connectivity and biodiversity
-Habitat restoration is most effective when addresses gaps in existing corridors
-Many animal species need more than 1 habitat type for different life cycles
Economic Goals:
Attract investment
Drive tourism
Increase property value
Attract skilled workers
Reduce commuting times
Promote Efficient land use