The design standards listed below and in the adopted Town/Village design criteria and construction specifications shall be incorporated into all proposed plats.
Land shall be suited to the purposes for which it is to be subdivided. In general, the Board shall take the following factors into consideration prior to the approval of any subdivision plat:
A. 
Subdivisions laid out on land subject to periodic flooding shall not be approved unless adequate safeguards against such hazards are provided by the plat.
B. 
Areas characterized by steep slopes, rock formations or other features shall not be subdivided into residential lots.
A. 
Street dimensions and design standards shall be in accordance with design criteria and construction specifications.
B. 
The location of all major streets in the proposed subdivision shall conform in general alignment to the traffic plan adopted by the Zoning Board of Appeals.
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
C. 
The proposed street layout shall provide for the continuation or projection of existing streets in the surrounding areas unless the Board deems such extension undesirable for specific reasons of topography or design.
D. 
Streets shall be logically related to the topography to produce usable lots and reasonable grades.
E. 
Minor streets shall be laid out to discourage through traffic, but provision for street connections into and from adjacent areas will generally be required.
F. 
Proposed streets shall be extended to provide access to adjoining property where necessary.
G. 
Adequate street rights-of-way shall be provided as necessary where lots in the proposal are large enough to permit resubdivision or if a portion of the tract is not subdivided.
H. 
Where a subdivision abuts or contains an existing or proposed major traffic street, the Board may require marginal access streets, rear service alleys, reverse-frontage lots or such other treatment as will provide protection for abutting property.
I. 
Dead-end streets shall be prohibited, except as stubs to permit future street extension into adjoining tracts or when designed as culs-de-sac.
J. 
New reserve strips, including those controlling access to streets, shall not be allowed.
A. 
Streets shall be laid out to intersect as nearly as possible at right angles. No street shall intersect another at an angle of less than 75°.
B. 
Multiple intersections involving junction of more than two streets shall be avoided.
C. 
Clear sight triangles of 30 feet measured along street lot lines from their point of junction shall be provided at all intersections, and no building, fences or shrubs shall be permitted within such sight triangles.
D. 
To the fullest extent possible, intersections with major traffic streets shall be located not less than 800 feet apart, measured from center line to center line.
E. 
Streets entering opposite sides of another street shall be laid out either directly opposite one another or with a minimum offset of 125 feet between their center lines.
F. 
Minimum curb radii at street intersections shall be 15 feet for intersections involving only minor streets, 30 feet for intersections involving other type streets or such greater radius as is suited to the specific intersection.
G. 
Where a subdivision abuts or contains an existing street of inadequate right-of-way width, additional right-of-way width in conformance with design criteria and construction specifications will be required.
H. 
At intersections, leveling areas shall extend at least 100 feet from the center line of the intersection at a grade not to exceed 3%.
A. 
Cul-de-sac streets, permanently designed as such, shall not exceed 1,000 feet in length and shall furnish access to not more than 20 dwelling units.
B. 
Cul-de-sac streets shall be provided at the closed end with a paved turnaround having a minimum radius to the outer pavement edge or curbline of 50 feet.
A. 
Lot sizes and dimensions shall be not less than those specified in Chapter 193, Zoning.
B. 
All lots shall front upon a public street.
C. 
The ratio of the depth of any lot to its width shall not be greater than 2 1/2 to 1, except as may be specified in Chapter 193, Zoning, of the Code of the Town/Village of East Rochester.
D. 
Side lot lines shall be substantially at right angles or radial to street lines.
E. 
If remnants of land exist after subdividing, they shall be incorporated into existing or proposed lots or dedicated to public use if acceptable to the Town/Village.
F. 
Double-frontage lots are prohibited, except where employed to prevent vehicular access to major traffic streets.
G. 
The depth and width of parcels laid out or reserved for nonresidential use shall be sufficient to provide satisfactory space for off-street parking and unloading as required by the provisions of the Chapter 193, Zoning.
A. 
Easements with a minimum width of 20 feet, plus the width of any required pipe or other improvement, shall be provided as necessary for utilities.
B. 
To the fullest extent possible, easements shall be centered on or adjacent to rear or side lot lines.
C. 
Where a subdivision is traversed by a watercourse, there shall be provided a drainage easement or right-of-way conforming substantially with the line of such width as will be adequate to preserve natural drainage.
A. 
The length, width and shape of blocks shall be determined with due regard to the following:
(1) 
Provision of adequate sites for buildings of the type proposed.
(2) 
Zoning requirements.
(3) 
Topography.
(4) 
Requirements for safe and convenient vehicular and pedestrian circulation.
B. 
Blocks shall have a minimum length of 750 feet and a maximum length of 1,200 feet. In the design of blocks longer than 1,000 feet, special consideration shall be given to the requirements of satisfactory fire protection.
C. 
Residential blocks shall be of sufficient depth to accommodate two tiers of lots, except where reverse-frontage lots bordering a major traffic street are used.
D. 
Pedestrian interior walks may be required where necessary to assist circulation or provide access to community facilities. Such crosswalks shall have a width of not less than 10 feet and a paved walk of not less than five feet.
A. 
Lots shall be laid out and graded to provide positive drainage away from buildings.
B. 
Storm sewers, culverts and related installations shall be provided:
(1) 
To permit unimpeded flow of natural watercourses.
(2) 
To ensure adequate drainage of all low points along the line of streets.
(3) 
To intercept stormwater runoff along streets at intervals reasonably related to the extent and grade of the area drained.
(4) 
To provide for removal of roof and cellar infiltration water by means of storm laterals.
C. 
In the design of storm sewerage installations, special consideration shall be given to avoidance of problems which may arise from concentration of stormwater runoff over adjacent properties.
[Amended 3-8-1999 by L.L. No. 1-1999]
A. 
In reviewing subdivision plats and site plans, the Board will consider the adequacy of existing or proposed community facilities to serve the additional dwellings proposed by the subdivision.
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
B. 
Where a proposed park, playground, school or other public use shown in the Comprehensive Plan is located in whole or in part in a subdivision and/or site plan, the Board may require the reservation of such area as may be deemed reasonable. Where said area is not dedicated, it shall be reserved for acquisition by the Town/Village for a period of three years.
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
C. 
Areas provided or reserved for such community facilities should be adequate to provide for building sites, landscaping and off-street parking as appropriate to the use proposed.
D. 
The layout of the proposed subdivision shall be in general conformity with the features or developments proposed in the Comprehensive Plan of the Town/Village of East Rochester.