Road Classification
|
Speed
(miles per hour)
|
Distance
(feet)
|
---|---|---|
Local access
|
25
|
280
|
Marginal access
|
25
|
280
|
Minor
|
30
|
335
|
Collector
|
40
|
445
|
Connector
|
50
|
555
|
Type of Subdivision or Land Development
|
Distance between center lines of driveway and nearest intersecting
street right-of-way by
Type of Intersecting Street
(The nearest intersecting street shall be construed as being
on the same or the opposite side of the street on which the driveway
is proposed.)
| ||
---|---|---|---|
Arterial
(feet)
|
Connector
Collector
(feet)
|
Minor
Local Access
Marginal Access
(feet)
| |
Residential
|
150
|
100
|
75
|
Nonresidential
|
300
|
200
|
150
|
Table 615-1
| ||||
---|---|---|---|---|
Property Line and Road Right-of-Way Buffers
| ||||
[See § 187-56F(3) for buffer intensity requirements]
| ||||
Property-Line Buffers - applies to side and rear property lines
| ||||
Adjacent Use
| ||||
Office/ Institutional Public Recreation
|
Commercial/ Industrial
|
Multifamily Mobile Home Park
|
Single-Family Two-Family
| |
Proposed Use
|
Buffer Type/Width
(feet)
| |||
Office/ Institutional
|
Low/10
|
Low/10
|
Medium/15
|
High/20
|
Commercial/ Industrial
|
Medium/15
|
Low/10
|
High/20
|
High/20
|
Residential*
|
Low/10
|
Medium/15
|
Low/10
|
Medium/15
|
Active Recreation (play fields, golf courses, swim clubs, etc.)
|
Low/10
|
None
|
Low/10
|
Low/10
|
*
|
Buffers are required for all multifamily and mobile home parks.
|
Parking Lot Buffers along Road Rights-of-Way
| |
---|---|
Size of Parking Lot
|
Buffer Type/Width
(feet)
|
10 spaces or less
|
Low/10
|
11 to 50 spaces
|
Medium/20
|
More than 50 spaces
|
High/30
|
Buffer Type
|
Plants
(per 100 linear feet)
|
---|---|
Low
|
2 canopy trees, 1 ornamental tree, and 5 shrubs
|
Medium
|
2 canopy trees, 2 ornamental trees, 2 evergreen trees, and 10
shrubs
|
High
|
5 evergreen trees, 2 ornamental trees, 2 canopy trees, and 20
shrubs
|
Number of Trees
|
Minimum Number of Tree Species
|
Maximum Percent of Any One Species
|
---|---|---|
0 to 5
|
1
|
100%
|
6 to 15
|
2
|
50%
|
16 to 30
|
3
|
40%
|
31 to 50
|
4
|
30%
|
51+
|
6
|
20%
|
Table 615-2
| ||||
---|---|---|---|---|
Site Element Screens
| ||||
[See § 187-56F(4)(f) for screen types and design criteria]
| ||||
Existing Adjacent Land Use
(or Zoned Uses When Undeveloped*)
| ||||
Proposed Use
|
Office or Institutional
|
All Other Non-residential
|
Single-Family, Two-Family, Townhouses
|
All Roads
|
Dumpster, trash, or recycling area
|
4 or 8
|
3 or 4
|
4 or 8
|
4 or 8
|
Service or loading docks
|
2 or 5
|
—
|
2 or 5
|
2 or 5
|
Outdoor sales yard and vehicle storage (excluding vehicle sales
areas)
|
1
|
1
|
1
|
1, 7 or 9
|
Multifamily rear yards
|
—
|
—
|
—
|
6
|
Active recreation facilities (tennis, basketball, court games,
etc.)
|
—
|
—
|
7
|
—
|
Retention or detention basins
|
6
|
—
|
6
|
—
|
Sewage treatment plants and pump stations
|
1 or 8
|
—
|
1 or 8
|
1 or 8
|
*
|
When residential and nonresidential uses are allowed by the
zoning district on undeveloped adjacent land, the residential requirements
shall apply.
|
Screen Type
|
Design Criteria
|
---|---|
Screen Type #1: Evergreen or deciduous shrubs
|
Shrubs shall be placed 3 feet on center in a minimum 5-foot-wide
bed surrounding the site element and arranged to provide a continuous
hedge-like screen up to a minimum height of 3.5 feet at maturity.
Shrubs may be clipped to form a hedge or left in their natural habit
|
Screen Type #2: Double row of evergreen trees.
|
A double row of evergreen trees shall be placed 10 feet on center
and offset 10 feet to provide a continuous screen at a minimum height
of 12 feet at maturity
|
Screen Type #3: Opaque fence
|
A 6-foot opaque fence surrounding the site element on at least
three sides
|
Screen Type #4: Opaque fence with ornamental trees and shrubs
|
A 6-foot opaque fence surrounding the site element on at least
three sides with additional plantings at the minimum rate of 3 shrubs
and 2 ornamental trees or large shrubs for each 10 linear feet of
proposed fence, arranged formally or informally next to the fence
|
Screen Type #5: Architectural extension of the building
|
An 8-foot minimum height architectural extension of the building
(such as a wing wall) shall enclose service or loading docks. The
building materials and style of the extension shall be consistent
with the main building
|
Screen Type #6: Berm with ornamental trees
|
A 2- to 3-foot-high continuous curvilinear berm with ornamental
trees at the rate of 1 tree for every 20 feet, clustered or arranged
informally. The maximum slope of the berm shall be 3:1
|
Screen Type #7: A 2- to 3-foot-high continuous curvilinear berm
with grass alone
|
The maximum slope of the berm shall be 3:1
|
Screen Type #8: Evergreen hedge
|
An evergreen hedge (such as Arborvitae, Chamaecyparis, etc.)
with a minimum height at planting of 6-foot plants, 4 feet on center
maximum
|
Screen Type #9: Low wall
|
A wall of brick or stone (not concrete block) at least 50% opaque,
no less than 3 and no more than 4 feet in height
|
Largest Type of Truck Service
|
Minimum Width
(feet)
|
Minimum Length
(feet)
|
---|---|---|
Tractor trailer
|
14
|
74 with 14 feet of clear height
|
Trucks other than tractor trailers, pickups or vans
|
12
|
30
|
Pickup truck or van
|
10
|
20
|
Width*
|
1-Way Use
(feet)
|
2-Way Use
(feet)
|
---|---|---|
Minimum
|
12
|
24
|
Maximum
|
20
|
50
|
*
|
Exclusive of the turning radius
|
Maximum Average Light Levels
| |
---|---|
Land Use
|
Footcandles
|
Pedestrian areas/sidewalks
|
1.0
|
Building entries
|
5.0
|
Streetlighting
|
1.0
|
Parking areas with high nighttime activity
|
4.0
|
Parking areas with low nighttime activity
|
2.0
|
Playgrounds
|
5.0
|
Sports grounds
|
20.0
|
Site perimeter
|
0.5
|
Local road (residential)
|
0.4
|
Collector road (commercial)
|
1.0
|
Source: North Carolina Dark Skies Association and Chittenden
County Regional Planning Commission.
|