Key Biscayne Master Plan 043944000.18w_Key_Biscayne_MP(forJooMag) | Page 23

3.0 EXISTING UTILITY SYSTEM OVERVIEW line then jogs west and turns south down the Fernwood Road corridor. From that corridor moving south it generally branches out to the east and the west to feed the various optical nodes. To better understand how cable television is delivered to individual homes and businesses, the following is a brief overview of the various components of the existing cable television and communications system that exists within the Village. Cable television and communications service enters the Village through the main fiber optic cable described above. This cable then branches off to subsequent fiber optic cables that serve individual fiber nodes providing service to many distinct service areas throughout the Village. The fiber optic cables that serve these nodes exists on the main north-south arterial road, such as Fernwood Road. The nodes provide a transition from fiber optic service to coaxial cable service. Branching from these nodes are the main coaxial distribution cables. The coaxial distribution cables are routed to numerous amplifiers, aerial taps and ground mounted pedestals that provide the individual coaxial services to the customers. The main coaxial distribution cables and individual service cables are generally those wires that are located in the rear yard easements although they are also co-located with the fiber optic cable on some of the overhead lines. The following table provides general approximate information related to Comcast’s network within the Village based on maps provided by Comcast and observations made by Kimley-Horn: Table 3–2 — Comcast Network Information Length of Overhead Fiber Trunk Lines 9 miles Length of Overhead Coaxial Trunk Lines 16 miles Length of Underground Fiber Trunk Lines 2 miles Length of Underground Coaxial Trunk Lines 13 miles Number of Fiber Nodes 18 Number of Power Supplies 20 3.4 Overhead Infrastructure – AT&T AT&T provides the Village with telephone and communications service through a mix of overhead and underground backbone copper trunk lines that then transition to service lines to the building. AT&T does not keep records of the total length of cable they have installed in the Village. The system is very mature and most of it was constructed in the early 1960’s. The network is fed by one main copper feed. Similar to Comcast, the one main feed is an underground duct bank that originates north of the Village’s northern municipal limits. Through a series of manholes, this underground duct continues south along Crandon Boulevard with a secondary route down Fernwood Road. These ducts then converge on AT&T’s main distribution building on Westwood Drive. It then heads west on Westwood to feed the southern portion of the Village. From this corridor moving south then west, lines generally branch out east and west and then north and south to feed the Village. To better understand how telephone service is delivered to individual homes and businesses, the following is a brief overview of the various components of the existing telephone and communications system that exists within the Village. Telephone and communications service enters the Village through one main copper cables described above. This cable then branches off to subsequent copper cables that serve a network of Service Area Interface (SAI) cabinets and Controlled Environment Vaults (CEV) that provide service to many distinct service areas throughout the Village. A significant portion of the main trunk line is already underground with radial splices occurring in manholes along the route. Many of the radials then transition to overhead locations to serve area customers. The copper cable main lines are routed to numerous aerial taps and ground mounted pedestals that serve as the tapping point for individual copper services to the customers. 19