Performance Standards
Figure 1 ![]() |
Figure 510-92: Vision Clearance Triangle Standards | ||
|---|---|---|
Right-of-Way Width | Distance From Right-of-Way Intersection | |
Less than or equal to 66 feet | 10 feet | |
Greater than or equal to 67 feet | 20 Feet | |
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Figure 510-93A: Parking Layout Dimensions | |||||||
|---|---|---|---|---|---|---|---|
Parking Angle in Degrees | |||||||
Minimum Permitted Dimensions | 0° | 45° | 60° | 75° | 90° | ||
Stall width at parking angle (SW) (feet) | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | ||
Stall width parallel to aisle (WP) (feet) | 17 | 12.7 | 10.4 | 9.3 | 9.0 | ||
Stall depth to wall (D) (feet) | 9.01 | 17.51 | 19.01 | 19.51 | 18.51 | ||
Stall depth to interlock (DI) (feet) | N/A | 15.3 | 17.5 | 18.8 | N/A | ||
Stall length (SL) (feet) | 18.0 | 18.0 | 18.0 | 18.0 | 18.0 | ||
Aisle width (AW) (feet) | 12.02 | 12.02 | 16.02 | 17.202 | 24.0 | ||
Throat length (right-of-way to parking angle) (T) | Refer to requirements in Figure 510-93B | ||||||
Parking module width (PMW) | |||||||
Wall to wall (single-loaded) (W1) (feet) | 21.0 | 29.5 | 35.0 | 42.5 | 44.5 | ||
Wall to wall (double-loaded) (W2) (feet) | 30.0 | 47.0 | 54.0 | 62.0 | 63.0 | ||
Wall to interlock (double-loaded) (W3) (feet) | N/A | 44.8 | 52.5 | 61.3 | N/A | ||
Interlock to interlock (double-loaded) (W4) (feet) | N/A | 42.6 | 51.0 | 60.6 | N/A | ||
![]() | Notes: | ||
1 | Parking spaces located behind an enclosed garage and located directly off a thorough aisle shall be at least 30 feet deep. | ||
2 | This dimension represents (AW) for one-way traffic. | ||
Figure 510-93B: Minimum Permitted Throat Length | ||||
|---|---|---|---|---|
Type of Access Street | ||||
Land Use | Type | Scale of Development | Collector (feet) | Arterial (feet) |
Residential | Any residential | 0 to 100 dwelling units | 25 | N/A |
101 to 200 dwelling units | 50 | 75 | ||
201+ dwelling units | 75 | 125 | ||
Commercial | Office | 0 to 50,000 gross square feet | 25 | 50 |
50,001 to 100,000 gross square feet | 25 | 75 | ||
100,001 to 200,000 gross square feet | 50 | 100 | ||
200,001+ gross square feet | 100 | 150 | ||
In-vehicle sales or service | 0 to 2,000 gross square feet | 25 | 75 | |
2,001+ gross square feet | 50 | 100 | ||
Commercial indoor lodging | 0 to 150 rooms | 25 | 75 | |
151+ rooms | 25 | 100 | ||
Other commercial uses | 0 to 25,000 gross square feet | 25 | 50 | |
25,001 to 100,000 gross square feet | 25 | 75 | ||
100,001 to 500,000 gross square feet | 50 | 100 | ||
500,001+ gross square feet | 100 | 200 | ||
Industrial | All industrial uses | 0 to 100,000 gross square feet | 25 | 50 |
100,001 to 500,000 gross square feet | 50 | 100 | ||
500,001+ gross square feet | 50 | 200 | ||
Other uses | 6+ spaces | 25 | 50 | |
Figure 510-94: Loading Standards | ||||||
|---|---|---|---|---|---|---|
Design Vehicle | Length (feet) | Dock Angle(a) | Clearance (D) (feet) | Berth Width (W) (feet) | Apron Space (A) (feet) | Total Offset (T) (feet) |
WB-40 | 50 | 90° | 50 | 10 | 63 | 113 |
12 | 56 | 106 | ||||
14 | 52 | 102 | ||||
60° | 44 | 10 | 46 | 90 | ||
12 | 40 | 84 | ||||
14 | 35 | 79 | ||||
45° | 36 | 10 | 37 | 73 | ||
12 | 32 | 68 | ||||
14 | 29 | 65 | ||||
WB-50 | 55 | 90° | 55 | 10 | 77 | 132 |
12 | 72 | 127 | ||||
14 | 67 | 122 | ||||
60° | 48 | 10 | 55 | 103 | ||
12 | 51 | 99 | ||||
14 | 46 | 94 | ||||
45° | 39 | 10 | 45 | 84 | ||
12 | 40 | 79 | ||||
14 | 37 | 76 | ||||
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Figure 510-99: Vibration Measurement Constant | ||||
|---|---|---|---|---|
K All Other Districts | K GI District | |||
On or beyond any adjacent lot line | ||||
Continuous | 0.003 | 0.015 | ||
Impulsive | 0.006 | 0.030 | ||
Fewer 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 | ||
Fewer than 8 pulses per 24-hour period | 0.015 | 0.015 | ||
Figure 510-100A: Maximum Permitted Noise Level at Lot Line for Continuous Noise | ||
|---|---|---|
Zoning District | Increase in Noise Level Over Ambient Level | |
RH-35, SR-3, SR-4, SR-5, SR-6, SR-7, TR-8, AR-9, MR-10 and MHR-6 | Plus 3 dBA | |
NB, HB, CB and BP | Plus 5 dBA | |
LI and GI | Plus 8 dBA | |
Figure 510-100B: 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 dBA* | |
Noise source operates less than 5% of any 1-hour period | Plus 10 dBA* | |
Noise source operates less than 1% of any 1-hour period | Plus 15 dBA* | |
Noise of impulsive character (hammering, etc.) | Minus 5 dBA | |
Noise of periodic character (hum, speech, etc.) | Minus 5 dBA | |
Notes: | ||
|---|---|---|
* | Apply only one of these corrections. | |