(A) Conformance with major thoroughfare plan. All proposed streets and roads and pedestrian accommodations shown on a proposed major subdivision plat shall conform to the width and location requirements as set forth by the city's comprehensive plan, and/or these subdivision regulations. See the Roadway and Drainage Technical Standards Appendix D of this chapter for supplemental design standards and broad cross-section graphics.
(B) Relation to adjoining street system. The Planning Commission shall require that the proposed street system extend and connect to existing streets and "road-stubs" wherever feasible. Deviations from this requirement shall be requested by the applicant as a waiver from these regulations.
(C) Major thoroughfare design and right-of-way widths (all streets other than local streets). Street design standards and minimum right-of-way widths for all streets are shown in the table below. Should there be a conflict between an existing major thoroughfare and the subdivision regulations, then the existing major thoroughfare shall govern. See Appendix D of this chapter for cross section graphics correlating with the table on the following page.
(D) Dedication of right-of-way for one or both sides of street. The entire right-of-way shall be provided where any part of the subdivision is on both sides of the existing street. When the subdivision is located on only one side of an existing street, one- half of the required right-of-way measured from the centerline of the existing roadway, shall be provided.
(E) Improvement of substandard roads. In approving a plat for a development, the Planning Commission may require that impacted substandard city roads prior to the adoption of these regulations be improved by the developer to the minimum standards contained in these regulations. Such improvements shall be commensurate with the impact of the proposed development, and whenever possible, shall be supported by traffic studies conducted at the developer's expense per the Franklin-Simpson Zoning Regulations and these regulations.
General Roadway Cross Sections - City of Franklin
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Street Type | Travel Lanes (Min.) | Design Speed (mph) | Min. Right of Way | Shoulder Width* | Lane Width (Min.) | Turn Lanes | Curb/ Curb & Gutter | Sidewalk Width |
General Roadway Cross Sections - City of Franklin
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Street Type | Travel Lanes (Min.) | Design Speed (mph) | Min. Right of Way | Shoulder Width* | Lane Width (Min.) | Turn Lanes | Curb/ Curb & Gutter | Sidewalk Width |
Place or Alley | 2 | 20 | 20' | n/a | 9' | n/a | yes | n/a |
Lane | 2 | 25 | 50' | n/a | 10' | n/a | yes | 5' |
Minor Collector | 2 | 30 | 50' | n/a | 13' | n/a | yes | 5' |
Major Collector | 2 | 40 | 60' | - | 14' | n/a | yes | 5' |
Arterial | 2 | 45+ | 80' | - | 14' | yes | n/a | 6' - 8' |
Marginal Access | 2 | 25 | 40' | n/a | 13' | n/a | yes | n/a |
Minimum right of way should be determined upon context and the potential number of travel lanes
*Shoulder width can vary based on designation (e.g., bike route)
Places and Lanes-Minor Local Roads include both these types
(F) Restriction of access. When a tract fronts on a collector, arterial or major highway the Planning Commission may require that such lots have access provided from a marginal access street or from adjacent streets with internal access.
(G) Alleys.
(1) Alleys are minor ways which are used primarily for vehicular service access to the back or side of properties otherwise abutting on a street. Wherever reasonable, alleys accessing the rear of lots should be utilized for all land uses. Alley access should be encouraged by the Planning Commission as an alternative to front access off of streets. In some cases, alley access shall be the only option, as with commercial and mixed-use areas where a pattern of front driveways does not already exist because of a pedestrian orientation and shallow building front setbacks. Alleys can also be an alternative to cross-access requirements since they perform the same function at the rear of lots.
(2) In planned unit developments, in which deviations from standard lot widths may be allowed, alleys shall be required, and front driveways prohibited for blocks featuring any residential lots that are 50 feet or less in width.
(3) Alleys shall have a minimum width of 20 feet and a maximum width of 24 feet.
(4) In no case shall maintenance of alleys become the responsibility of the city. All alleys shall be maintained in perpetuity by a Homeowners' or other property owner's association.
(H) Dead end streets.
(1) Cul-de-sac streets may only be planned where conditions require their use because of barriers to connecting to other existing or planned streets such as topographic challenges, streams, railroad lines, and similar natural or manmade barriers. Cul-de-sac streets may not have a length greater than 1,500 feet unless approved by the Planning Commission for stated reasons related to topography or other physical hardship.
(2) The Planning Commission shall require the developer to provide public street access to adjoining properties where feasible. Proposed streets shall be extended by dedication to the boundary of such property. Such dead-end streets, when their length exceeds 150 feet, shall provide a turnaround having the right-of-way diameter of at least 100 feet and built as specified in these subdivision regulations. Additional guidelines for dead end streets are contained in the Roadway and Drainage Technical Standards Appendix to these regulations. Temporary cul-de-sacs will be required with the phasing of street sections.
(I) Private streets and reserve strips.
(1) There shall be no private streets platted in any subdivision. Every lot in all other subdivided properties shall continuously abut at least one public street for the minimum lot width as set forth in the zoning regulations.
(2) There shall be no reserve strips controlling access to streets.
(3) Gated communities must provide police, utility, and emergency vehicle access by Knox Box or equivalent. All such entities must approve the Knox Box system with an approval letter provided to the Planning Administrator with the final plat. No building permits will be granted until all entities have confirmed access ability to the said Know Box to the Planning Administrator.
(J) Access to public roads.
(1) No lot may be less than 75 feet wide at any point between the front building setback line and the road right of way or as specified in the zoning regulations.
(2) No new lot shall be created which does not continuously abut at least one public street for at least 75 feet. An easement shall not satisfy this requirement.
(3) No building shall be erected on a lot which does not continuously abut at least one public street for at least 75 feet. An easement shall not satisfy this requirement.
(4) The following exceptions shall apply to this section:
(a) Lots approved as part of a planned unit development.
(b) Previously existing lots of record with easements to a public street. There can only be one tract accessing the private street/road easement.
(c) A lot with more than one-half its frontage on the bulb of a cul-de-sac must continuously abut the street for at least 30 feet.
(d) Parcels or tracts of land which contain five acres or more.
(Ord. 2022-007, passed 3-14-2022)