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r <br /> f <br /> For existing traffic conditions, there are two <br /> locations at LOS E and two which exceed capacity <br /> figures used in the analysis. These locations are <br /> Hammer Lane at Tam O ' Shanter , West Lane at <br /> Bianchi , Hammer Lane at West Lane, and West Lane <br /> at March Lane, respectively. There are a number <br /> of possible reasons for an intersection to have a <br /> V/C ratio greater than 1 . 0 . This may be an <br /> indication that capacity figures used ( 1 , 650 <br /> vehicles/hour/through lane ) are too low for the <br /> area , and that traffic moves better than typical. <br /> Of course, a high V/C ratio could also indicate <br /> very serious existing congestion problems. For <br /> intersections studied, there is likely a combin- <br /> ation of both; there is serious congestion and the <br /> capacities of the roadways in this study area may <br /> actually be higher than normal. <br /> When the Kaiser Permanente Medical Center project <br /> traffic is added to existing traffic, some <br /> significant increases in congestion occur . The <br /> intersection of Hammer Lane and Tam O'Shanter goes <br /> into the failure mode, as well as West Lane at <br /> Bianchi Road. All other intersections, other than <br /> those that were already in the failure mode, would <br /> have Level of Service D or better conditions . <br /> This brings the total of failing intersections to <br /> four for this traffic loading. <br /> Cumulative traffic loading would cause failure at <br /> every intersection studied with the existing lane <br /> geometrics and street cross-sections . Some V/C <br /> ratios exceed 3. 0 which is an indication that very <br /> major improvements would have to be made to the <br /> existing street network in order to handle the <br /> amount of future development considered. <br /> Table 3 shows capacity analysis using mitigation <br /> measures discussed by TJKM with the City Public <br /> Works Department Staff. These mitigations include <br /> two major roads being constructed in the future: <br /> March Lane being extended east to its ultimate <br /> interchange connection with S. R. 99, and Holman <br /> Road extending north from March Lane to Eight Mile <br /> Road. These two streets would give the study area <br /> major arterial roadways serving as east/west and <br /> north/south connectors , providing significant <br /> relief to both West Lane and Hammer Lane. By <br /> reassigning a portion of future traffic to these <br /> new roadways , there was a corresponding reduction <br /> in traffic on some existing streets. In addition <br /> to these two new roadways , there would also be <br /> significant intersection improvements and widening <br /> at most locations studied. <br /> 22 <br />