Type of Street
|
Right-of-Way Width
(feet)
|
Pavement Width
(feet)
|
---|---|---|
Arterial
|
80
|
Determined individually
|
Collector
|
60
|
40
|
Local
|
50
|
36
|
Drainage Basin Size
(acres)
|
Storm Frequency Design Capacity
|
---|---|
0 to 25
|
15-year
|
26 to 100
|
25-year
|
Over 100
|
50-year
|
Land Use Type
|
Runoff Coefficients
|
---|---|
Business:
| |
Downtown areas
|
0.70 to 0.95
|
Neighborhood areas
|
0.50 to 0.70
|
Residential:
| |
Single-family areas
|
0.30 to 0.50
|
Multiunits, detached
|
0.40 to 0.60
|
Multiunits, attached
|
0.60 to 0.75
|
Residential (suburban)
|
0.25 to 0.40
|
Apartment dwelling areas
|
0.50 to 0.70
|
Industrial:
| |
Light areas
|
0.50 to 0.80
|
Heavy areas
|
0.60 to 0.90
|
Parks, cemeteries
|
0.16 to 0.25
|
Playgrounds
|
0.20 to 0.35
|
Railroad yard areas
|
0.20 to 0.35
|
Unimproved areas
|
0.10 to 0.30
|
Streets:
| |
Surface type:
| |
Asphaltic
|
0.70 to 0.95
|
Concrete
|
0.80 to 0.95
|
Brick
|
0.70 to 0.85
|
Drives and walks
|
0.75 to 0.85
|
Roofs:
|
0.75 to 0.95
|
Flat: 2%
|
0.05 to 0.10
|
Average: 2% to 7%
|
0.10 to 0.15
|
Steep: 7%
|
0.15 to 0.20
|
Lawns: heavy soil:
| |
Flat: 2%
|
0.13 to 0.17
|
Average: 2% to 7%
|
0.18 to 0.22
|
Steep: 7%
|
0.25 to 0.35
|
Angle of Parking Space
(Degrees)
|
1-Way Aisle
(feet)
|
2-Way Aisle
(feet)
|
---|---|---|
90
|
Prohibited
|
24
|
60
|
18
|
20
|
45
|
15
|
20
|
30
|
12
|
18
|
Parallel
|
12
|
18
|
Schedule of Minimum Distances for Location of Parking and Loading
Areas
| ||||
---|---|---|---|---|
Zone
|
From Buildings
(feet)2
|
From Streets
(feet)4
|
From Property Lines
(feet)
|
From Residential Zones
(feet)5
|
Residential districts1
|
10
|
10
|
10
|
10
|
CC
|
10
|
10
|
10
|
25
|
C/I
|
10
|
10
|
10
|
25
|
Open Space districts
|
10
|
25
|
10
|
25
|
Mixed-Use districts
|
5(3)
|
10
|
10
|
10
|
NOTES:
| |
---|---|
(1)
|
All uses except one-family dwellings.
|
(2)
|
Loading areas and parking spaces adjoining garage doors excepted.
|
(3)
|
Ten feet from front of building.
|
(4)
|
Parking prohibited in front yard except for parking in residential
driveway or in the C/I District, provided that no parking shall be
situated within 100 feet of any residential zone district.
|
(5)
|
But not less than 10% of the average lot depth from a rear property
line.
|
A
|
Total number of parking spaces required to satisfy nonresidential
uses at point of peak demand.
|
B
|
Total number of parking spaces required to satisfy residential
uses at point of peak demand.
|
C
|
Total number of parking spaces required to satisfy peak demand
(residential and nonresidential combined) (A+B).
|
D
|
Less on-site parking supply (existing to remain and proposed).
|
E
|
Net peak demand on municipal parking (C-D).
|
A
|
Total number of parking spaces required to satisfy nonresidential
uses at point of peak demand.
|
D
|
Less on-site parking supply (existing to remain and proposed).
|
E
|
Net nonresidential demand on municipal parking at peak (A -
D).
|
C
|
Total peak demand on municipal parking (A + B).
|
F
|
Net nonresidential demand on municipal parking at peak (A -
D).
|
G
|
Net additional demand on municipal parking at peak (C - F).
|