A. Access:
1. All required parking spaces shall have access to a public street or alley.
2. An adequate driveway "throat" shall be provided from the public street, unencumbered by parking spaces, turnaround areas or security gates, subject to the approval of the Director of Engineering.
3. In the multiple-family residential zones R-3R, R-3, R-3P, R-G, R-4 and R-5, when subterranean parking is used the ramp down to the garage shall have a transition or vertical curve for ten feet measured horizontally from the street or alley toward the garage. Ramps shall have a maximum slope of 20 percent designed so that there is a maximum break in grade of ten percent, with a minimum transition or vertical curve of five feet between major grade breaks. No parking shall be allowed to use for turnaround area and ramp with a slope greater than five percent.
B. Standards for driveways on property with an R-1, R-2 or any residential preservation zone classification:
1. One-way driveways and driveways providing access to ten or less parking spaces shall have a minimum width of 12 feet, except for driveways in the R-1P, R-2P and R-3P zone classifications, where the maximum width is nine feet. Driveways should be spaced a minimum of one foot from the property line of an adjacent lot.
2. A "U"-shaped driveway, where the driveway has more than one point of access from a public street, may be allowed subject to the following conditions (see Figure 8):
Figure 8
a. The distance between the points of access from the public street shall be at least 30 feet.
b. The distance from the front property line to the center point of the driveway curve shall be at least 10 feet.
c. The area of the proposed driveway shall be no more than 50 percent of the required front yard setback area.
d. Counting the proposed driveway area, the property shall comply with the lot coverage requirement for the zone.
C. Standards for driveways on property with a multiple-family residential zone classification:
1. One-way driveways shall have a minimum width of 12 feet. Two-way driveways shall have a minimum width of 25 feet.
2. Driveways should be located a minimum of one foot from the property line of an adjacent lot.
3. Turnaround aisles and drives shall be subject to the approval of the Director of Development Services.
4. Driveways and/or turnaround aisles serving ten or more parking spaces shall not be dead-ended unless a turnaround or backup area is provided to the satisfaction of the Director of Development Services.
(Ord. 3197 § 10, 2013; Ord. 3131 (part), 2009; Ord. 3062 § 1, 2005: Ord. 2982, 2001)