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MOUNTAIN HOUSE NEIGHBORHOODS K AND L INITIAL STUDY 5.ENVIRONMENTAL CHECKLIST <br /> 15. TRANSPORTATIONITRAFFIC <br /> r1l <br /> computed and observed volumes. Therefore,the model has been calibrated to a <br /> -' high level of accuracy. <br /> A total of four scenarios were studied: <br /> ■ Existing Conditions; <br /> ■ Existing plus Project; <br /> ■ 2035 Cumulative plus Previously Approved2 Neighborhoods K and L Project <br /> plus Mountain House Buildout Conditions; and <br /> ■ 2035 Cumulative plus Currently Proposed Neighborhoods K and L Project <br /> plus Mountain House Buildout Conditions.3 <br /> Thresholds of Significance <br /> The level of service standards shown Table 5.15-1 LEVEL OF SERVICE(LOS) <br /> in Table 5.15-1 were taken from the STANDARDS <br /> San Joaquin County General Plan, Roadways LOS <br /> Mountain House Master Plan, and Community gateway roads within <br /> San Joaquin Regional Congestion Mountain House,including Byron D <br /> Management Plan. Mountain House Road,Grant Line Road,Mountain <br /> gateway road segments include Grant House Parkway <br /> Line Road from the county line to Freeways E <br /> Mountain House Parkway, Mountain Alameda County roads D <br /> House Parkway from Byron Road to <br /> 1-205,and Byron Road from the Other roads c <br /> County line to Wicklund Road. Source: TJKM,2011. <br /> At unsignalized intersections, at least one signal warrant(as defined in the <br /> Manual on Uniform Traffic Control Devices(MUTCD)) must be met before a <br /> traffic signal can be considered as a potential mitigation. The level of service is <br /> repotted for the minor approach. Depending on the availability of gaps, the <br /> minor approach might be operating at level of service(LOS) D, E, or F while the <br /> intersection as a whole operates at LOS C or better. A minor approach that <br /> operates at LOS D, E,or F does not automatically translate into a need for a <br /> traffic signal. A signal warrant would still need to be met. There are many <br /> IF instances where only a few vehicles are experiencing LOS D, E,or F on the <br /> t <br /> minor approach while the whole intersection operates at an acceptable level of <br /> service. A signal is usually not warranted under such conditions. (See further <br /> discussion under"Intersection Level of Service Methodology"below.) <br /> 2 Previous approvals for Neighborhoods K and L were from the adoption of Specific Plan IL No <br /> Tentative Subdivision Maps were previously approved. <br /> 3 The buildout conditions were changed from the year 2010(1993 analysis)to the current year <br /> 2035 SJCOG model buildout. <br /> (snm) 5-163 <br /> 1 .f <br />