The following minimum standards and design criteria shall apply unless deemed unwarranted by written recommendation of the City Engineer. These standards and criteria shall be supplemented by other applicable existing engineering and construction requirements and standards as specified by the City Engineer.
A. Subdivision Design: The subdivision design shall conform to the pattern of major streets as designated in the City General Plan and the Transportation Master Plan, or other official street plan adopted by the City.
B. Access Design: The street and traffic access design of a proposed subdivision development shall promote the purposes and goals of the City's Master transportation plan. Any street design proposal which would effectively preclude or substantially impair the ability of the city to implement any listed possible solution to a listed traffic problem, as described in the transportation master plan, must be approved by the mayor after receiving the recommendations of the city engineer and the planning commission.
C. Street Pattern: The street pattern in the subdivision shall be in general conformity with a plan for the most advantageous development of adjoining areas and the entire neighborhood or district. The following guidelines shall be considered in evaluating a proposed street layout:
1. Proposed streets should be continuous and in alignment with existing planned or platted streets;
2. Proposed streets shall be extended to the boundary lines of the land to be subdivided, unless prevented by topography or other physical conditions, or unless, in the opinion of the city engineer, the road extension is not desirable for the coordination of the subdivision with the existing layout or the most advantageous future development of adjacent tracts;
3. Proposed streets shall intersect one another as nearly at right angles as topography and other limiting factors of good design permit;
4. Alleys shall not normally be permitted in residential subdivisions, but may be permitted in nonresidential subdivisions.
D. Subdivisions Adjacent To Arterials: Subdivisions adjacent to arterials should be designed according to the following guidelines:
1. Street design shall have the purpose of making adjacent lots, if for residential use, desirable for such use by mitigating the impact of heavy traffic and of minimizing the interference with traffic on arterials;
2. The number of intersecting streets along arterials shall be held to a minimum;
3. Frontage roads, if required or existing, shall be separated from the arterial or freeway by a strip of permanent landscaping not less than ten feet (10') in width. A landscaping plan for the strip shall be submitted for approval by the city forester. Frontage roads shall enter arterials by means of intersections designed with turning and stacking capacity adequate for the traffic volume as estimated by the city engineer;
4. Where frontage roads are not required, residential lots adjacent to an arterial shall be served by a minor residential street paralleling said arterial at a generous lot depth therefrom. The minor residential street shall be separated from the arterial by a strip of permanent landscaping parallel to the arterial right of way not less than ten feet (10') in width. Greater widths may be appropriate and required by the city engineer;
5. If the rear of any lot borders a public street, the subdivider may be required to execute and deliver to the city an instrument, deemed sufficient by the city attorney, prohibiting the right of ingress and egress from said public street to that lot. In addition, a masonry wall and related improvements must be installed as provided in this chapter.
E. Grades: Curves and sight distances shall be subject to approval by the city engineer to ensure proper drainage and safety for vehicles and pedestrians. Grades of all streets shall conform in general to the terrain, and may not be less than one- half percent (1/2%) nor more than five percent (5%) for main thoroughfares nor more than ten percent (10%) for minor streets.
F. Curb Radii: Curb radii at intersections shall comply with specifications as directed by the city engineer. (Ord. 94-40 § 1: prior code § 30-44)