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Transcript of Landscape Elements
![Page 1: Landscape Elements](https://reader035.fdocuments.in/reader035/viewer/2022081413/5472b499b4af9f21778b4582/html5/thumbnails/1.jpg)
LANDSCAPING ELEMENTS
Water bodies Pools Fountains cascades
Plants
Rocks
Paving
Lighting
UNIT II
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INTERIOR LANDSCAPING ELEMENTS
Water bodiesWATER as DESIGN ELELMENT
Elements of Visual DesignThe particular characters of
• Line• Form• Color• Texture &• Sound
LANDSCAPING ELEMENTS
Water bodies
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Line:
The character of line formed by the Water Land Interface has a major impact upon the images water evokes in the mind of the beholder.
Soft textured line – unbridled nature
Controlled Sinuous Line – Controlled or Symbolic Nature
Water as vertical line in rhythmic pattern
Angular Line – confers Energy
The edge can be obscured with aquatic plants for a sense of mystery or can be crisp and decisively bulk-headed leaving little to imagination.
Water surface can also be expressed as a line for example:
Influence of wind creating Rhythmic Horizontal Lines on the water surface.
Water falling over the edge creates Series Of Vertical Lines forming a striated veil.
Rhythmic silhouette
LANDSCAPING ELEMENTS
Water bodies
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LANDSCAPING ELEMENTS
Water bodiesForm:
The form of the water feature can be to
• Accentuate The Flow Of Water• Convey A Sense Of Centrality• A Sense Of Arrival
The form can be a complex combination of differing characters, thereby bringing together disparate elements.
The form can be simple and uniform to convey a more unified sense
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Colour:
Good quality water is relatively clear.Takes on the colour imparted by reflections carried upon its surface, and also the colour of the container.
White and Mirrored Container:Express transparency and hence creates an illusion of shallowness.
Light Blue Container:Impart clarity, cleanliness and purity of water.
Dark Blue & Black Container:Maximize reflections and hence create illusion of shadowy depth.
LANDSCAPING ELEMENTS
Water bodies
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LANDSCAPING ELEMENTS
Water bodiesTexture:Texture into flowing water can be brought about by turbulence. Constriction to water flow or protrusion into flowing water causes turbulence.
The Surface of moving water is determined by depth and flow characteristics and by the shape and texture of its containers.
Thinner the layer of water becomes, even a minor difference in container alignment can cause surface texture.
When a thin sheet of water moves down a vertical surface, minor ripples in the surface can impart interesting textures and aeration to the water.
Smooth surface yields glassy sheet flow
Overlap produces horizontal frothy rhythm
Stair steps create myriad of droplets, each reflecting light source.
Sensual Quality:
A sensual quality of the space, enrichment can result from consistency of character and meaning or from counterpoint.
Horizontal ribs create agitated frothy surface
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Cascades & Waterfalls
WATER as DESIGN ELELMENT
Naturalized Cascade
Cast pools & Waterfalls
LANDSCAPING ELEMENTS
Water bodies
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LANDSCAPING ELEMENTS
Water bodies
Cascades & Waterfalls
WATER as DESIGN ELELMENT
Step Related Cascade
Falling water is animated and produces musical sound.
Fountain & Cascade
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LANDSCAPING ELEMENTS
Water bodies
Fountains & Jets
WATER as DESIGN ELELMENT
Pedestals, Jets & Basins
Inlets can be designed to bring the desired effect.Wall Fountains
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LANDSCAPING ELEMENTS
Water bodiesWATER as DESIGN ELELMENT
Pools A quiet reflecting basin of any size or shape can be constructed of varied materials as Metal, Concrete, Brick, Granite sets or Wood.
Pool as reflecting basin:
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Plant MaterialsPLANT as DESIGN ELELMENT
LANDSCAPING ELEMENTS
Elements of Visual DesignThe particular characters of
• Line• Form• Color• Texture &• Plant Masses
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LANDSCAPING ELEMENTS
INTRODUCTION :
Pavements are generally classified by their intended use within a particular landscapeor design context. Pavement types and structural characteristics are modified by application loading i.e.
• Heavy, • Medium, Or• Light Duty
Other criteria to be considered are:
• Sub-grade bearing capacity, • climate, • installation, and • maintenance costs.
PAVING
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PAVING
INTRODUCTION :
Paving includes the movement of
• Pedestrian And • Vehicular Pavements
This is typically encountered indoor open spaces or outdoor spaces in
• Residential, • Urban, • Institutional, • Commercial and• Site Planning Applications.
LANDSCAPING ELEMENTS
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LANDSCAPING ELEMENTS
PAVINGPAVEMENT COMPOSITION:
Pavements are layered composite structures designed to bear pedestrian and vehicular circulation loads, while providing an even well-drained surface .
The structural layers of pavement commonly consist of a • prepared sub-grade, • an aggregate base, and • a wearing or surface layer.
Sub-grade:
The sub-grade is the soil layer beneath the pavement which bears • the design load,• receives infiltration water, and • is subject to ground water infusion
It may consist of existing site subsoil at the bottom plane of a grading cut, or a controlled structural fill, placed in compacted lifts. In either event, it is commonly referred to as "prepared subgrade,"
In most circumstances, the sub-grade is sloped parallel to the finished pavement surface to insure proper drainage .
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LANDSCAPING ELEMENTS
PAVING
Aggregate Base & Sub-base:
The base layer consists of a graded aggregate foundation that transfers the pavement load to the sub-grade in a controlled radiating manner.
Light duty pavements typically require a single layer of sand or stone dust to serve both as a setting bed, as well as a structural base.
Heavy-duty pavements or weak sub-grades, usually require an additional layer of base material, called a ‘Sub-base’, which also consists of a clean but coarser-graded aggregate layer.
Both aggregate base and sub-base typically extend beyond the pavement edge to provide lateral support, and to prevent uneven sub-grade loading .
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LANDSCAPING ELEMENTS
PAVING
Paving Detail –
Subjected to Light Load
Flexible unit pavement applications may range from:
• Cobblestone Service Roads To
• Light-duty Flagstone Garden Patios,
Flexible unit paving typically require edge restraints to prevent lateral creeping over time.
These pavements by virtue of their butt joint construction are porous to semi-porous
Flexible Paving
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LANDSCAPING ELEMENTS
PAVINGPaving Detail – Subjected to Light Load
With dimensions
196mm x 196mm x 85mm concrete pavers with 15mm nub spaces
15mm space filled with 5mm dia stone
25 mm thk, 5mm dia stone setting bed
150 mm thk, Dense grade Agg. Base
Prepared Sub-base
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LANDSCAPING ELEMENTS
PAVINGPaving Detail – Subjected to Light Load
With dimensions
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LANDSCAPING ELEMENTS
PAVING
Paving Detail –
Subjected to Heavy Load
Rigid monolithic pavements are typically constructed as cast-in-place reinforced concrete slabs .
Rigid unit pavements require unit pavers to be mortared or glued to a reinforced concrete base .
Rigid Paving
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LANDSCAPING ELEMENTS
PAVING
Typical Paving Detail
Paving Detail – In Clay Soil
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LANDSCAPING ELEMENTS
PAVING
Private Garden Pavement
Pavements can function from small and modest scale to perform in heavy duty application circumstances.
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LANDSCAPING ELEMENTS
PAVING
Roof Garden Pavement
Pavements in this case must be light weight and durable due to extremely variable conditions.
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LANDSCAPING ELEMENTS
PAVING
Public Plaza Pavement
Pavements are typically subjected to medium to heavy duty loads due to dense pedestrian traffic, service and emergency vehicle access and large scale mechanical maintenance practices
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LANDSCAPING ELEMENTS
PAVING
Townscape Pavement
Pavements may range from light to heavy duty based upon particular vehicular loading, but are generally rated as light to medium duty.
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LANDSCAPING ELEMENTS
PAVINGPAVEMENT DESIGN CRITERIA
Load bearing capacity:Heavy, medium, and light duty applications generally refer to the type of vehicular and pedestrian traffic which a pavement must accommodate .
Durability:Pavement design must accommodate sustained pavement loading as well as maintenance methods and natural weathering effects .
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Safety:Compiling to the safety standards regarding to
• Texture, • Joinery,• Slope, • Drainage, And • Associated Site Furnishings• Pavement Color And • Pavement Finish are also constrained by reflectivity, glare, and permeability
as they relate to climate setting
Aesthetics:Patterns and textures should be considered in scale with the larger design to avoid inappropriate complexity or blandness. Paving patterns can be achieved with a combination of both flexible and rigid paving systems.
PAVINGPAVEMENT DESIGN CRITERIA
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PAVINGPAVEMENT DESIGN CRITERIA PAVINGPAVEMENT DESIGN CRITERIA
Climate:
Hot & Humid:• Drainage is critical to prevent build-up of mosses and algae, and to account for
intense periods of precipitation .• Light colors are often used to avoid heat absorption . • Stable temperatures provide for a wide variety of materials.
Hot & Arid:• A wide variety of materials are available in this climate zone . • Materials are typically light in color to avoid heat absorption, and may include
glazed tiles porous finishes due to low humidity and relatively stable temperature ranges .
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LANDSCAPING ELEMENTS
PAVINGPAVEMENT DESIGN CRITERIA
Climate:
Temperate:• Darker colors are typical to absorb radiant solar energy. • Heavy snow regions must account for abrasive clearing practices .• Mortared unit pavers require heavy maintenance in extensive applications .
Cold:• Cold areas require similar treatments as the temperate zone, but with more
restrictions. • Flexible pavements are preferred over rigid and mortared unit pavers .
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PAVINGPAVEMENT DESIGN CRITERIA
Materials used in paving:
• Brick Masonry Paving
• Tile Paver Pattern
• Textured Concrete Pattern
• Stone Sett Pattern
• Stone Pavers
• Concrete Paver Patterns
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LANDSCAPING ELEMENTS
PAVINGBrick Masonry Pattern
• Stake Bond
• Quarter Running Bond
• Running Bond
• Basket Weave Bond & Variation
• Herringbone Bond
• Running Bond Stacked
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LANDSCAPING ELEMENTS
PAVINGTile Paver Pattern
• Concentric Circles
• Hexagonal
• Various size patterns
• Square grid
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LANDSCAPING ELEMENTS
PAVINGTextured Concrete Pattern
• Square grid
• Hexagon
• Hexagon Variation
• Cobblestone
• Fish-scale
• River Rock
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LANDSCAPING ELEMENTS
PAVINGStone Sett Pattern
• Running Bond
• Stacked Bond
• Square Grid
• Concentric Circle
• Random Mixed Pattern
• Wood Setts
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LANDSCAPING ELEMENTS
PAVINGStone Pavers
• Irregular (Fitted)
• Semi Regular
• Random Rectangular
• Rectangular (Limited Size)
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LANDSCAPING ELEMENTS
PAVINGConcrete Paver Pattern
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LANDSCAPING ELEMENTS
PAVINGTypes of Paving Materials:
Paving Material Advantages Dis-advantages
In-Situ PavingIn-Situ Paving
Concrete
• Easy to Install
• Several finishes colours and textures are available
• Durable surface
• Long life time
• Low maintenance
• Adaptable to curvilinear form
• Low heat absorbency
• Joints are required
• Could be aesthetically unappealing
• Disintegrate if not installed properly
• Is reflective in nature hence cause glare
• Due to settling can cause cracks.
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LANDSCAPING ELEMENTS
PAVINGTypes of Paving Materials:
Paving Material Advantages Dis-advantages
Asphalt
• Can be porous
• Dust free surface
• Durable surface
• Long life time
• Low maintenance
• Adaptable to curvilinear form
• Can be porous
• Water repellent
• Edges are to be supported
• Can soften in warm weather
• Soluble in gasoline and other petroleum solvents
• Susceptible to freeze if water penetrates into the base
In-situ PavingIn-situ Paving
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LANDSCAPING ELEMENTS
PAVINGTypes of Paving Materials:
Paving Material Advantages Dis-advantages
Brick • Non glare surface
• Non skid surface
• Wide colour range
• Good scale
• Easily repaired
• High installation cost
• Difficult to clean
• Freezing causes disintegration
• Susceptible to different settlement
Tile • Polished indoor and outdoor surface
• High installation cost
• Suitable in mild climates only
Unit PavingUnit Paving
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LANDSCAPING ELEMENTS
PAVINGTypes of Paving Materials:
Paving Material Advantages Dis-advantages
Adobe Brick • Fast and easy installation
• Rich colour and texture
• Long life is ensured if base contains asphaltic stabilizer.
• Edges tend to crumble
• Store heat
• Dusty
• Suitable in warm and non-humid condition
• Fragile and requires level foundation
Flagstone • Very durable if properly installed
• Natural weathering qualities
• High installation cost
• Suitable in mild climates only
Unit PavingUnit Paving
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LANDSCAPING ELEMENTS
PAVINGTypes of Paving Materials:
Paving Material Advantages Dis-advantages
Unit PavingUnit Paving
Granite • Hard and Dense
• Durable under extreme conditions
• Supports heavy traffic
• Polished surfaces are easy to clean
• Difficult to work with
• Chemical weathering
• Relatively expensive
Limestone • Easy to work with
• Rich colour and texture
• Susceptible to chemical weathering
Sandstone • Easy to work with
• Durable
• Susceptible to chemical weathering
Slate • Durable
• Slow to weather
• Range of colour
• Relatively expensive
• Can be slippery when wet
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LANDSCAPING ELEMENTS
PAVINGMaintenance:
The actual cost of a pavement must factor in the annual maintenance cost .
Often, a higher initial installation cost may result in a lower annual maintenance expenditure.
Additionally, the service life of a less expensive installation may be short, requiring replacement in 8-10 months.
It is prudent to invest in proper site preparation and aggregate base installation, due to their critical role in maintaining finish surface integrity.
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LANDSCAPING ELEMENTS
PAVINGMaintenance:
Annual maintenance for pavements typically requires:
• Periodic Coatings, • Pointing,• Cleaning And Sealing Of Joints, • Repair Of Broken Segments Or Settled Areas, • Re-setting Of Unit Pavers, And • General Sweeping To Remove Accumulated Fines And Debris .
Unit paving typically requires more attention to maintenance of edges and vegetative invasion, but is easily repaired .
Monolithic paving commonly requires less annual maintenance than does flexible unit paving .
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LIGHTING
LANDSCAPING ELEMENTS
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LANDSCAPING ELEMENTS
Lighting
The purposes of outdoor lighting include :
• Improving the legibility of critical nodes, landmarks, and circulation and activity zones in the landscape ;
• Facilitating the safe movement of pedestrians and vehicles, promoting a more secure environment, and minimizing the potential for personal harm and damage to property; and
• Helping to reveal the salient features of a site at a desired intensity of light in order to encourage nighttime use.
Objective of Lighting:
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LANDSCAPING ELEMENTS
Lighting
Lumen – A quantitative unit of measurement referring to the total amount of light energy emitted by a light source, without regard to the direction of its distribution .
Lux – The International Standard (SI) measure of incident light. It is equal to one lumen uniformly distributed over an area of one square meter (10.7 Ix = 1 fc)
Candlepower – The unit of intensity of a light source in a specific direction, often referred to as Candela .
Luminance – Luminance is the measurable form of brightness, which is a subjective sensation.
Terminology of Lighting:Illuminance – Incident light, or light striking a surface
Efficacy – A measure of how efficiently a lamp converts electric power (watts) into light energy (lumens) without regard to the effectiveness of its illumination.
Light depriciation – Lamp output (lumens) will depreciate over its effective life.
Glare – A point or surface of luminance that is above one's current state of adaptation.
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LANDSCAPING ELEMENTS
Lighting
Colour –
Two measures used to describe the color characteristics of lamps are • the apparent color and • the color rendering index.
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LANDSCAPING ELEMENTS
Lighting
Categories of Outdoor Light Fixtures
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LANDSCAPING ELEMENTS
LightingCategories of Landscape Light Fixtures
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LANDSCAPING ELEMENTS
Lighting
Lamp Characteristics and Distribution
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LANDSCAPING ELEMENTS
Lighting
General Design Consideration:
Lighting in the night is important as the designer can decide on:
• Parts of the landscape to be emphasized and
• Parts of the landscape to be hidden.
The desired effect for the designed space can be achieved by means of a combination of:
• Colour of light
• Mounting height of the fixture
• Direction of the lighting and
• character of the luminaries
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LANDSCAPING ELEMENTS
LightingGeneral Design Principles:
Attaining high levels of illumination along circulation routes does not have to be a prime consideration in outdoor lighting. If a clear and consistent system is provided, low levels may be adequate for safe circulation.
Clear Lighting Pattern:
A staggered layout of road and pathway light tends to obscure rather than reinforce the direction of circulation and location of intersection.
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LANDSCAPING ELEMENTS
LightingGeneral Design Principles:
Spacing, height, and distribution of luminaires should avoid foliage shadows, provide uniformity, and vertical surface illumination.
Placement of Luminaries
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LANDSCAPING ELEMENTS
LightingGeneral Design Principles:
What to light and What not to light
Placement of Luminaries
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LANDSCAPING ELEMENTS
LightingGeneral Design Principles:
Glare is a major inhibitor of good visibility and can be produced by any scale of light fixture, henceforth luminaries must be planned to avoid glare.
Glare:
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LANDSCAPING ELEMENTS
LightingGeneral Design Principles:
Atmosphere & Character:
A consistency of design expression can be achieved by identifying the common elements in a landscape that give it character and then using the similar approaches to their lighting.
Background:Background spaces should be illuminated as unobtrusively as possible to meet the functional needs of safe circulation and protecting people and property.
Whenever possible, these needs should be accommodated with peripheral lighting from the walkways, signage, entrances, and other elements relevant to the definition of the space .
Foreground:Foreground spaces should utilize local lighting which produces maximum focus, minimum distractions, and no glare .
Foreground spaces or objects may be major elements and should be treated accordingly
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LANDSCAPING ELEMENTS
Lighting
Illumination of Object:The direction of the light source is important for perception of three-dimensional objects.
Usually, the best way to illuminate standing objects is with a combination of point source lighting & Uniform Lighting, both types of lighting .
One source should accentuate shape and form by contrasting the surface with sharp shadows while the other source provides fill-lighting for details .
Colour Perception:
General Design Principles:
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LANDSCAPING ELEMENTS
Lighting
Colour Perception:Accurate color rendition will aid recognition and improve the perception of outdoor environments . This is especially important at the pedestrian scale, where the color contrast of paving and landscape materials is often subtle.
As the general illumination level rises in a given situation, preference usually shifts away from a warm appearance toward the cool range.
General Design Principles:
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LANDSCAPING ELEMENTS
LightingBasic Light Distribution Pattern:
UPLIGHTING
Directional Viewing All Direction Viewing
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LANDSCAPING ELEMENTS
LightingBasic Light Distribution Pattern:
SILHOUTTE LIGHTING
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LANDSCAPING ELEMENTS
LightingBasic Light Distribution Pattern:
UP & DOWN LIGHTING
Moonlighting Spot Lighting
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LANDSCAPING ELEMENTS
LightingBasic Light Distribution Pattern:
SPREADING LIGHTING
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LANDSCAPING ELEMENTS
LightingBasic Light Distribution Pattern:
PATH - LIGHTING