Waiver Request for Atlas Tranquility Park Road Design

Original title: Atlas Tranquility Park - Preliminary Plat - 000634 Waiver to Preliminary Plat in Review Parcel #: 39279-026-00 #WaiverPIR-000860-2026 Tillman & Associates Engineering, LLC LDC 6.12.9 - Subdivision Roads and Related Infrastructure CODE states A. In residential subdivisions, the road system shall be designed to serve the needs of the neighborhood and to discourage use by truck traffic and through traffic and still provide access to adjacent neighborhoods for emergency services. The use of neighborhood traffic calming devices such as traffic circles, cul-de-sac, etc. are encouraged in residential areas. B. Major local roads shall be identified on plans. C. All roads and related infrastructure within the proposed subdivision shall be designed, constructed, and paved to County specifications provided herein. D. The developer shall be required to design, construct, and pave to County specifications, one road from the subdivision to the nearest paved, public roadway with legal access, if such a road does not already exist. E. Roads and stormwater facilities within a subdivision shall be dedicated as either public or private. F. Public dedications shall be pre-approved by the Development Review Committee. If a MSBU is established as the maintenance and operation entity, roads and stormwater facilities can be platted as public. G. Cul-de-sac diameters to the right-of-way line shall not be less than 120 feet with a pavement radius of 40 feet for residential subdivisions and shall not be less than 120 feet to the right-of-way line with a pavement radius of 45 feet for commercial or industrial subdivisions. Refer to details in Section 7.3.1. A grassed island no greater than 50 feet in diameter may be constructed in the center of a cul-de-sac. H. Dead end roads shall not exceed 1,500 feet and shall have a cul-de-sac at the terminal end. Refer to details in Section 7.3.1. Dead end roads intended to provide future access to adjacent unplatted areas may be permitted without a cul-de-sac provided that no lots front thereon, the length does not exceed 1,500 feet, and appropriate temporary end-of-road markers are provided. I. The total perimeter of a block shall not exceed 4,500 feet. Larger block perimeters will be permitted for blocks surrounding or adjacent to natural or artificial features such as lakes, rivers, and golf courses where limiting block lengths are not feasible and impractical. J. Corner radii at the intersection of the two rights-of-way shall be not less than 25 feet. Minimum pavement radii shall be 40 feet for residential subdivisions and 50 feet for commercial or industrial subdivisions. K. Centerline radii shall be designed to accommodate the minimum design speed of 30 mph for subdivision local and minor local roads, 40 mph for major local and collector roads, and 45 mph for arterial roads in accordance with FDOT and AASHTO Standards. L. Evacuation routes for developments shall be indicated on the improvement plans. APPLICANT - Requests a waiver for the roadway centerlines not meeting centerline radii for 30 mph design speed. Proposed curves warranting lower design speeds will have proper signage.