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L <br /> capacity for a lower-class arterial with up to three signals per mile is assumed to be 890 vph for one lane and <br /> 1,780 vph for two lanes.The roadways that are similar to this category are Grant Line Road near Byron Road and <br /> �- a section of Eleventh Street in Tracy. <br /> Arterial Link-Level Analysis <br /> The traffic impacts for arterial sections are shown in Table 4.11-12.The arterial LOS analysis shows that most of <br /> the roadway segments are expected to operate at an acceptable LOS.Traffic effects on these segments would <br /> _ therefore be less than significant.Compared to the results of the MHM?EIR traffic analysis, several roadway <br /> segments are expected to operate at a better LOS,including the following: <br /> Mountain House Road south of Kelso Road <br /> ► Byron Road east of Mountain House Road <br /> ► Byron Road east of Mountain House Parkway <br /> ► Hansen Road south of I-205 <br /> Grant Line Road north of I-580 <br /> Tracy Boulevard north of Lammers Road <br /> ► Middle/Arbor Road east of Byron Highway <br /> .. ► Middle/Arbor Road east of Tracy Boulevard <br /> The analysis shows that the following arterial roadway segments are expected to operate at an unacceptable LOS; <br /> without mitigation,therefore,traffic impacts on these segments are projected to be significant: <br /> ► Altamont Pass Road west of Grant Line Road <br /> ► Byron Highway west of Mountain House Road <br /> ► Byron Road east of Grant Line Road <br /> Byron Road east of Lammers Road <br /> ► Grant Line Road east of Mountain House Parkway <br /> Grant Line Road(existing)east of Byron Road <br /> Eleventh Street west of Tracy Boulevard <br /> These results are similar to those of the arterial LOS analysis for the MHMP as reported in the MHMP EIR except <br /> for Byron Road east of Grant Line Road.The traffic impacts at Byron Road east of Grant Line Road are expected <br /> to be worse than shown in the MHMP EIR for the scenario without the I-205/Lammers Road Interchange <br /> (operating at LOS D rather than LOS C during the p.m.peak hour).The preliminary plan for the I-205/Lammers <br /> Road Interchange PSR showed Byron Road to be realigned to connect with Lammers Road north of I-205.With <br /> realignment,traffic in the area could change considerably, resulting in a reduced impact on Byron Road.Because <br /> this improvement is not currently funded,its implementation is uncertain.Therefore,this would represent a <br /> potentially significant impact. <br /> Freeway Link-Level Analysis <br /> The I-580/1-205 corridor has experienced unprecedented traffic congestion,delays,and backups in the past two <br /> decades.Traffic growth in the I-580/1-205 freeway corridor has been approximately 4%to 5%per year since <br /> 1990.If travel growth keeps pace with historical trends,travel demand would increase by 60%in 10 years. <br /> As indicated above,the current forecast for 2005 shows traffic volumes on area freeways to be greater than available <br /> capacity and even higher than the 2010 forecasts in the MHMP EIR.Consequently,the model is projecting traffic <br /> being diverted from the freeway to parallel roadways such as Von Sosten Road,Grant Line Road,and Byron Road <br /> in the project study area and to Altamont Pass Road further away from the project study area. <br /> The traffic impacts on freeway sections are shown in Table 4.11-13. Similar to the MHMP EIR forecasts(Table <br /> 4.11-14),most sections of the freeways are expected to be over their capacity,operating at LOS F.The freeway <br /> - College Park at Mountain House Specific Plan III Draft EIR EDAW <br /> San Joaquin County 4.11-35 Transportation <br />