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A.3 Example ITS Communication Designs and Costs This section win present He following: rrs Communication Infrastructure Cost Estimating Example llS Communication System Designs and Costs A.3.1 ITS Communication Infrastructure Cost Estimating Communication infrastructure costs are a function of many vanables including: · Medium type; Terminals employed; Geography of ITS services coverage area including size and character~shcs; Communication architecture Rat defines redundant fault tolerant requirements, multiplexing employed, interfaces, standards, etc.; · Topology of communication network`; and Numbers of ITS sensors, signs, cameras, etc., and their locations and communication loads. Communication medicine are generally classified as wire, fiber, and wireless. AR Wee require terminals. Wire and fiber require He instaBabon of a cable plant Hat Interconnects terminals and the acquisition of terminal sites and cable plant nght-of-way. Wireless requires the installation of terminals and acquisition of terminal sites. A.3.~.1 Fiber and TWP Cabie Plant Costs Although exact installation requirements and procedures are different, material arid installation costs for TWP and fiber are comparable. Current Single Mode Fiber Optic (SMFO) and Twisted Wire Pair (CLIP) cable costs are comparable, while Multimode Fiber Optic (MOO) cable is more expensive. L;wCHRP\Phase2~pt ~NCHRP3-51 · Phase2FmalReport A3-1