In project design and in reviewing project applications, the following principles of subdivision and site design shall apply:
A. Data gathering and site analysis. Assess site characteristics, such as general site context; geology and soil; topography; ecology; existing vegetation, structures, and road networks; visual features, and past and present use of the site.
B. Subdivision and site design.
(1) Base the design of the development on the site analysis. Locate development to the maximum extent practical to preserve the natural features of the site, to areas of environmental sensitivity, and to minimize negative impacts and alteration of natural features.
(2) Design and arrange streets, lots, parking areas, buildings and units to reduce unnecessary impervious cover, and to mitigate adverse effects of shadow, noise, odor, traffic, transportation, drainage and utilities on neighboring properties.
(3) Consider all existing local and regional plans for the surrounding community.
(4) Design storm drainage facilities as an integral part of the development and arrange the design to use as much of the natural drainage as possible.
(5) Design lots and sites to reduce cut and fill, and to avoid flooding and adversely affecting groundwater and aquifer recharge, and provide for sewage disposal and adequate access.
C. Residential development design.
(1) Residential developments may be arranged in conventional, cluster or combination of designs (for environmental reasons, cluster development is encouraged). Consider topography, privacy, building height, orientation, drainage, and aesthetics in placement of units. Provide units with private outdoor space where appropriate and practical.
(2) Space buildings so that adequate privacy is provided for units.
D. Commercial and industrial development design. Design commercial and industrial developments according to the same principles governing design of residential developments: locate buildings based on topography; avoid to the maximum extent practical environmentally sensitive areas; consider factors such as drainage, noise, odor and surrounding land uses in siting buildings, buffer where adverse impacts exist.
E. Circulation system design.
(1) Design the street system to permit the safe, efficient, and orderly movement of traffic.
(2) In addition, design the street system to meet the following objectives: to meet but not to exceed the needs of the present and future population served; to have a simple and logical pattern; to respect natural features and topography; and to present an attractive streetscape.
(3) Design streets in a hierarchical system. (See Article
VI, §
505-20B.)
(4) In planned developments, pedestrian walkways may be located away from the road system, but they may also be required parallel to the street for safety and other reasons.
(5) In conventional developments, locate pedestrian walkways parallel to the street, but permit exceptions to preserve topographical or natural features or to provide visual interest.
F. Landscape design.
(1) Provide landscaping in public areas, on recreation sites, and adjacent to buildings to screen parking areas, mitigate adverse impacts, and provide windbreaks for winter winds and summer cooling for buildings, streets and parking.
(2) Select the plant or other landscaping material that will best serve the intended function, and use landscaping materials appropriate for local soil conditions, water availability and environment.
(3) Vary the type and amount of landscaping with type of development, and accent site entrances with special landscaping treatment.
(4) Consider massing trees at critical points rather than in a straight line at predetermined intervals along streets.
(5) Consider the impact of any proposed landscaping plan at various time intervals. Shrubs may grow and eventually block out building windows.
G. Building design. Planning Board is permitted to review preliminary architectural elevations.