Total site area
|
=
|
_____ acres
| |
-
|
_____ acres
| ||
Base site area
|
=
|
_____ acres
|
Resource
|
1.
Open Space Ratio
|
2.
Acres of Land in Resources
|
3.
Resource Protection Land
(acres x open space ratio)
| |
---|---|---|---|---|
Floodplains
|
1.00
| |||
Floodplain soils
|
1.00
| |||
Lakes and ponds
|
1.00
| |||
Riparian buffer
|
1.00
| |||
Watercourses
|
1.00
| |||
Wetlands
|
1.00
| |||
Wetland margin
|
0.80
| |||
Lake and pond shore
|
0.70
| |||
Steep slope 25% +
|
0.85
| |||
Steep slope 15% +
|
0.70
| |||
Woodland
|
0.50
| |||
Land with resource restrictions
|
_____ acres
| |||
Resource protection land
(Total of Column 3)
|
_____ acres
|
Base site area
|
_____ acres
| ||
Subtract land with resource restrictions
|
-
|
_____ acres
| |
Remainder
|
=
|
_____ acres
| |
Multiply by 0.2
|
x
|
_____ acres
| |
Recreation land
|
=
|
_____ acres
|
Resource protection land
|
_____ acres
| ||
Add recreation land
|
+
|
_____ acres
| |
Resource protection and recreation land
|
=
|
_____ acres
|
Base site area
|
_____ acres
| ||
Multiply by open space ratio
|
x
|
_____ acres
| |
Standard minimum open space
|
=
|
_____ acres
|
_____ acres
|
Resource-protection and recreation land
|
_____ acres
| ||
Subtract standard minimum open space
|
-
|
_____ acres
| |
Unusable land
|
=
|
_____ acres
| |
(Enter zero if calculation is less than zero)
|
Base site area
|
_____ acres
| ||
Subtract unusable land
|
-
|
_____ acres
| |
Net buildable site area
|
=
|
_____ acres
|
For nonresidential uses, skip to the next step.
| |||
Net buildable site area
|
_____ acres
| ||
Multiply by maximum density
|
x
|
_____ acres
| |
Number of dwelling units
|
=
|
_____ acres
| |
(Do not round up)
|
Net buildable site area
|
_____ acres
| ||
Multiply by maximum impervious surface ratio
|
x
|
_____ acres
| |
Impervious surfaces
|
=
|
_____ acres
|
Base site area
|
_____ acres
| ||
Subtract required open space
|
—
|
_____ acres
| |
Buildable portion of the site
|
=
|
_____ acres
|
Class
|
Option
| ||
---|---|---|---|
A
|
(1)
|
1 canopy tree per 40 feet on the boundary of
the buffer, plus 1 ornamental tree per 60 feet, arranged within the
buffer
| |
(2)
|
1 canopy tree per 40 feet, arranged within the
buffer, plus a hedge on the boundary of the buffer (planted on 3-foot
centers)
| ||
(3)
|
1 canopy tree per 40 feet, plus 1 evergreen
tree per 30 feet, arranged within the buffer yard
| ||
B
|
(1)
|
1 evergreen tree per 20 feet, arranged within
the buffer, plus a hedge on the boundary of the buffer (planted on
3-foot centers)
| |
(2)
|
1 evergreen tree per 25 feet, arranged within
the buffer, plus a berm averaging 4 feet high on the boundary of the
buffer
| ||
(3)
|
1 evergreen tree per 25 feet, arranged within
the buffer, plus one Shrub A per 8 feet on the boundary of the buffer
| ||
(4)
|
1 evergreen tree per 20 feet, arranged within
the buffer, plus 1 shrub from Category B per 4 feet on the boundary
of the buffer
| ||
C
|
(1)
|
1 hedgerow on the lot line, planted on 3-foot
centers
| |
(2)
|
A 6-foot-high cedar or spruce fence on the lot
line
|
Type
|
Size
(inches caliper)
| ||
---|---|---|---|
Canopy trees
|
Acer ginnala — Amur maple
|
1 1/2
| |
Acer plantanoides — Norway maple
|
1 1/2
| ||
Acer rubrum — Red maple
|
1 1/2
| ||
Acer saccharum — Sugar maple
|
1 1/2
| ||
Fagus grandifolia — American beech
|
1 1/2
| ||
Fagus sylvatica — European beech
|
1 1/2
| ||
Gleditsia triacanthos inermis — Locust
|
1 1/2
| ||
Liqudamber styraciflua “Rotundilba”
— Sweetgum
|
1 1/2
| ||
Liriodendron tulipifera — Tulip tree
|
1 1/2
| ||
Phellondendron amurense — Amur corktree
|
1 1/2
| ||
Plantanus acerifolia — London plane tree
|
1 1/2
| ||
Quercus alba — White oak
|
1 1/2
| ||
Quercus borealis — Red oak
|
1 1/2
| ||
Quercus coccinea — Scarlet oak
|
1 1/2
| ||
Quercus palustris — Pin oak
|
1 1/2
| ||
Quercus phellos — Willow oak
|
1 1/2
| ||
Robina psuedoacacia inermis — Locust
|
1 1/2
| ||
Sophora japonica — Japanese pagodatree
|
1 1/2
| ||
Tilia-linden — All species hardy to the
area
|
1 1/2
| ||
Zelkova serrata — Japanese zelkova
|
1 1/2
| ||
Ornamental
|
Amelanchier canadensis — Shadblow
|
5 to 6 feet
| |
Betula alba — European white birch
|
1 1/2
| ||
Betula papyrifera — Paper birch
|
1 1/2
| ||
Cornus florida — Flowering dogwood
|
5 to 6 feet
| ||
Cornus mas — Cornelian cherry
|
5 to 6 feet
| ||
Crataegus phaenopyrum — Washington hawthorn
|
5 to 6 feet
| ||
Koelreuteria paniculata — Goldenrain tree
|
8 to 10 feet
| ||
Laburnum vossi — Golden chain
|
1 1/2
| ||
Magnolia soulangeana — Saucer magnolia
|
5 to 6 feet
| ||
Magnolia virginiana — Sweet bay
|
5 to 6 feet
| ||
Malus baccata — Siberian crab
|
1 1/2
| ||
Malus floribunda — Japanese flowering
crab
|
1 1/2
| ||
Malus hopa — Hopa red-flowering crab
|
1 1/2
| ||
Oxydendrum arboreum — Sourwood
|
5 to 6 feet
| ||
Pyrus calleryana Bradford — Callery pear
|
1 1/2
| ||
Prunus kwanzan — Kwanzan cherry
|
1 1/2
| ||
Prunus yedoensis — Yoshino cherry
|
1 1/2
| ||
Evergreen 4 to 5 feet
|
Ilex opaca — American holly
| ||
Picea abies — Norway spruce
| |||
Picea omorika — Siberian spruce
| |||
Picea pungens — Colorado spruce
| |||
Pinus nigra — Austrian pine
| |||
Pinus strobes — White pine
| |||
Pseudotsuga menziesii — Douglas fir
| |||
Tsuga canadensis — Canada hemlock
| |||
Hedge
|
Crataegus intricate — Thicket hawthorn
|
3 to 4 feet
| |
Forsythia intermedia — Border forsythia
|
4 to 5 feet
| ||
Rhamnus frazula columnaris — Tallhedge
buckthorn
|
3 to 4 feet
| ||
Syringa chinensis — Chinese lilac
|
3 to 4 feet
| ||
Syringa vulgaris — Common lilac
|
4 to 5 feet
| ||
Viburnum alatus — Viburnum
|
4 to 5 feet
| ||
Hedgerow
|
Buxus — Boxwood
|
4 to 5 feet
| |
Pyracantha laland — Laland fire thorn
|
5 to 6 feet
| ||
Juniperus verginiawa — Upright juniper
|
4 to 5 feet
| ||
Cotoneaster divaricata — Spreading cotoneaster
|
3 to 3 1/2 feet
| ||
Rhamnus frangula-columnaris — Tall hedge
buckthorn
|
5 to 6 feet
| ||
Shrubs A
|
Junierus virginiana — Upright juniper
|
4 to 5 feet
| |
Pyracantha laland — Laland fire thorn
|
5 to 6 feet
| ||
Taxus capitata — Upright yew
|
2 to 3 feet
| ||
Taxus hicksi — Hicks yew
|
2 to 3 feet
| ||
Thuja occidentalis — American arborvitae
|
4 to 5 feet
| ||
Shrubs B
|
Euonymus alatus — Winged euonymus
|
3 to 4 feet
| |
Hamamelis vernalis — Vernal witch hazel
|
4 to 5 feet
| ||
Hamamelis virginiana — Common witch hazel
|
4 to 5 feet
| ||
Ilex verticillata — Winterberry
|
4 to 5 feet
| ||
Rharmnus frangula — Glossy buckthorn
|
4 to 5 feet
| ||
Viburnum dentatum — Arrowood virburnum
|
4 to 5 feet
|
Total Sound Level Minus Ambient Sound
Level
|
Correction Factor to be Subtracted from
Total Sound Level
| |
---|---|---|
10
|
0
| |
9
|
1
| |
8
|
1
| |
7
|
1
| |
6
|
1
| |
5
|
2
| |
4
|
2
| |
3
|
3
| |
2
|
4
| |
1
|
7
|
Table 1
Continuous Sound Levels by Receiving Land
Use
| |||||
---|---|---|---|---|---|
Receiving Land Use Category
|
Time
|
Sound Level Limit
(dBA)
| |||
Residential, public space, open space, agricultural,
or institutional
|
7:00 a.m. to 10:00 p.m.
|
55
| |||
10:00 p.m. to 7:00 a.m., plus Sundays and legal
holidays
|
50
| ||||
Office, commercial or business
|
7:00 a.m. to 10:00 p.m.
|
65
| |||
10:00 p.m. to 7:00 a.m., plus Sundays and legal
holidays
|
60
| ||||
Industrial
|
At all times
|
70
|