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Table 3. Twisted Pair Copper Interconnect Homerun Overview <br />Riser Central Cable # of At Hub Entrance <br />• DevicestFunctions on Cable <br />Signals <br />Cable Pairs on Cable <br />Homeruns at 858 Pearl Street Hub <br />85 <br />K (6' <br />12 <br />27 <br />- <br />(B) <br />31 (Franklin) <br />25 <br />25 <br />4 EmX block controllers <br />90 <br />32 (8` /Pearl) <br />12 <br />1 <br />(A) <br />42 (Broadway /Pearl) <br />12 <br />1 <br />- <br />88 (H) <br />75 (11' <br />25 <br />30 <br />89(l) <br />76 (Willamette /Amazon) <br />25 <br />37 <br />- <br />92 (J) <br />78 (8' "/11' ") <br />12 <br />10 <br />1 EmX block controller <br />87 (G) <br />79 (Coburg) <br />25 <br />22 <br />Advance emergency preemption, <br />4 CCTV cameras" <br />91 (D) <br />83 (7' <br />12 <br />11 <br />- <br />86 (E) <br />(Video to Roosevelt) <br />25 <br />0 <br />4 CCTV cameras' <br />94 (F) <br />I (Spare) <br />25 <br />0 <br />- <br />Homeruns <br />at 1820 Roosevelt Boulevard <br />Hub <br />N/A <br />R (Roosevelt/River/ <br />Pacific Hwy) <br />25 <br />31 <br />4 CCTV cameras`, <br />7 /Jefferson video detection cameras <br />The CCTV cameras are carried on Riser Cable G from Coburg Rd to the Intersection of 6 Avenue /Olive Street, then <br />on Riser Cable E to the intersection of Chambers Street/Roosevelt Boulevard, and then on Riser Cable R to the <br />Roosevelt Boulevard Hub. <br />2.1.1 Gaps in Public Works Communications Infrastructure <br />Public Works has identified the following gaps in their existing communications infrastructure: <br />• The City may ultimately move out of the 858 Pearl Street building, which is problematic <br />since the twisted copper pair interconnect for approximately 85 percent of the traffic <br />signals on- system terminate on the third floor of this building. The phased <br />communications deployment plan in Section 6 includes projects for relocating the <br />equipment and communications terminations currently in the Pearl Street building. <br />• There is limited capacity (spare pairs within each copper twisted pair cable) to <br />accommodate future requirements, which are discussed in Section 3. <br />• Communications distances currently supported by some of the copper twisted pair cable <br />are long resulting in lower communications data rates or difficulty establishing <br />communications. <br />• 35 (15 percent) of the City's 230 traffic signals are currently unserved by the network as <br />shown in Figure 2 and listed in Appendix C. Installing communications to traffic signals is <br />a high priority in the WillakenzieNalley River Area (Delta Highway cross - streets, <br />Willagillespie Road, and Cal Young Road) while isolated traffic signals on the fringes of <br />the City are a lower priority. <br />• There is currently limited communications capacity (both bandwidth and spare copper <br />pairs) for viewing or sharing camera images from the Ferry Street Bridge or from future <br />DKS Associates Eugene Master Traffic Communications Plan March 2008 <br />Page 10 <br />