§ 8.5. TND planning process.  


Latest version.
  • 8.5.1 Neighborhood plans shall demonstrate adherence to the following standard planning protocol for TND's:

    Step 1 Map existing site resources.

    a)

    Identify and delineate paths, roads, ponds, woods, streams, slopes and wetlands.

    b)

    Design the parks, squares, or greens around ponds, and wooded areas or specimen trees as much as practicable.

    c)

    Define natural boundaries on the site excluding arterials, utility easements, steep slopes (those exceeding 35 percent in 5,000 square feet contiguous areas) and any area of land to be preserved for its natural use.

    Step 2 Locate the commercial center on thoroughfare or intersection with highest traffic.

    Step 3 Structure site into pedestrian sheds.

    a)

    Pedestrian sheds form the basis for TND's. The size and shape of the neighborhood is determined by the pattern of the pedestrian shed.

    b)

    Pedestrian shed is equivalent to a five-minute walk from edge to center.

    c)

    One pedestrian shed should be centered upon the commercial center.

    d)

    Additional sheds should cover the remainder of the site with substantial overlap to prevent dilution of each center as a viable mixed use center.

    e)

    Can use irregular shape to represent actual walk times.

    Step 4 Adjust pedestrian sheds locations on site.

    a)

    Centers of the pedestrian shed must coincide in with natural or manmade features on the site. Site designers should use the features in the landscape as the backbone for public spaces.

    Examples:

    •Cluster of specimen trees can become a green, park or square

    •A hedgerow may present the opportunity to become a tree lined street or avenue

    •Existing paths on site can determine the location of streets and roads.

    b)

    Where such natural features either do not exist or do not provide such opportunities for becoming public space, introduce a public space as the center of each pedestrian shed.

    Step 5 Design street network/connect centers with thoroughfares.

    a)

    Subsequent to this point in the design of the TND, the natural features have been delineated and designed into the neighborhood design, the main commercial area has been determined and the pedestrian sheds have been outlined.

    b)

    Connect the centers with one another by "main" streets or avenues. They should be direct approaches but not necessarily straight. Using the terrain of the site to deflect and slow traffic through the neighborhood.

    c)

    Fill in the areas between the main streets with streets and roads into a network. Adjust the network to create a pattern of blocks. Such blocks should be smaller when in close proximity to the centers, and larger in the edges.

    d)

    Subdivide the blocks into lots.

    Step 6 Detail other neighborhood elements.

    Step 7 Reserve civic sites.

    Step 8 Provide covenants and establish local governance.

(Ord. No. 2006-Z-004, 5-2-06)