Figure 10-104b
Permitted Throat Length
| |||
---|---|---|---|
Minimum Throat Length
| |||
Type of Access Street
| |||
Land Use/Type
|
Scale of Development
|
Collector
(feet)
|
Arterial
(feet)
|
Residential
| |||
Any residential
|
0-100 dwelling units
|
25
|
N/A
|
101-200 dwelling units
|
50
|
75
| |
201+ dwelling units
|
75
|
125
| |
Commercial
| |||
Office
|
0-50,000 gross square feet
|
25
|
50
|
50,001-100,000 gross square feet
|
25
|
75
| |
100,001-200,000 gross square feet
|
50
|
100
| |
200,001+ gross square feet
|
100
|
150
| |
In-vehicle sales or service
|
0-2,000 gross square feet
|
25
|
75
|
2,001+ gross square feet
|
50
|
100
| |
Commercial indoor lodging
|
0-150 rooms
|
25
|
75
|
151+ rooms
|
25
|
100
| |
Other commercial uses
|
0-25,000 gross square feet
|
25
|
50
|
25,001-100,000 gross square feet
|
25
|
75
| |
100,001-500,000 gross square feet
|
50
|
100
| |
500,001+ gross square feet
|
100
|
200
| |
Industrial
| |||
All industrial uses
|
0-100,000 gross square feet
|
25
|
50
|
100,001-500,000 gross square feet
|
50
|
100
| |
500,001+ gross square feet
|
50
|
200
| |
Other Uses
| |||
6+ spaces
|
25
|
50
|
D = K/f
|
Where
|
D = Displacement in inches;
|
K = A constant to be determined by reference to
Figure 10-110 below;
|
f = The frequency of vibration transmitted through
the ground (cycles per second).
|
Figure 10-110
Vibration Measurement Constant
| |||
---|---|---|---|
Location for Measurement
|
K
All Other Districts
|
K
GI District
| |
On or beyond any adjacent lot line
| |||
Continuous
|
0.003
|
0.015
| |
Impulsive
|
0.006
|
0.030
| |
Less than 8 pulses per 24-hour period
|
0.015
|
0.075
| |
On or beyond any residential district boundary line
| |||
Continuous
|
0.003
|
0.003
| |
Impulsive
|
0.006
|
0.006
| |
Less than 8 pulses per 24-hour period
|
0.015
|
0.015
|
Figure 10-111a
Maximum Permitted Noise Level at Lot Line for Continuous
Noise
| |
---|---|
Zoning District
|
Increase in Noise Level Over Ambient Level
|
RH-35, SR-2, SR-4, SR-5, SR-6, MR-10, MR-20, MH-8
|
Plus 3 dBA
|
NMU, CMU, UMU, DMU, BP
|
Plus 5 dBA
|
LI, GI, ME
|
Plus 8 dBA
|
Figure 10-111b
Adjustment Factors for Maximum Noise Levels
| |
---|---|
Type of Operation in Character of Noise
|
Correction in Decibels
|
Daytime operation only
|
Plus 5 dBA
|
Noise source operates less than 20% of any 1-hour period
|
Plus 5 dBA1
|
Noise source operates less than 5% of any 1-hour period
|
Plus 10 dBA1
|
Noise source operates less than 1% of any 1-hour period
|
Plus 15 dBA1
|
Noise of impulsive character (hammering, etc.)
|
Minus 5 dBA
|
Noise of periodic character (hum, speech, etc.)
|
Minus 5 dBA
|
NOTE:
| |
1
|
Apply only one of these corrections.
|
Figure 10-119
Steps for Addressing Building Vacancy
| |
---|---|
Time Period Building is Vacant
|
Requirement
|
Within 1 year of vacancy
|
Install a Fire Department access box for annual fire inspection
if the Fire Department determines it is necessary. Remove signage
and sign structures
|
Within 3 years of vacancy
|
City may require owner to paint the building a neutral color,
if not already done
|
Within 5 years of vacancy
|
City may require the removal of all hard surfaces, with the
exception of the main driveway and fire lane around the building,
restore the former hard-surfaced areas with black dirt and grass,
or any combination of the above
|