Laserfiche WebLink
Location Truck Traffic <br /> SR 132 . 18% i <br /> 1-5 27% i <br /> 1-580 North of SR 132. 14% <br /> ,3 <br /> For cumulative conditions (year 2017), the same percentage of trucks was assumed, and <br /> truck traffic generated by other proposed quarries es (which were not accounted for in the <br /> 1995 data) were added to these percentages, <br /> H <br /> i <br /> �a <br /> Accident History =, v <br /> Accident information was obtained from Caltrans District 10 for the three year period <br /> ending on September 29, 1996. The area covered by the accident records was on SR 132 <br /> from Bird to Koster Road. There were 15 total accidents distributed throughout the <br /> segment during the three year period. Six accidents resulted in injuries; there were <br /> L . fatalities. Three of the injury accidents occurred at the 1-5 interchange. <br /> The Bird Road intersection was the site of only one accident, a right angle collision <br /> involving two vehicles in 1993. The Koster Road intersection was the site of two accidents <br /> involving drivers who failed to yield when entering SR 132. One accident involved a I <br /> 1 vehicle heading southbound on Koster Road colliding with a westbound vehicle on SR 132. <br /> The other involved a vehicle heading northbound on Koster Road colliding with an <br /> eastbound vehicle on SR 132. Both accidents resulted in injuries. <br /> METHODOLOGY <br /> The following intersections were identified for analysis in consultation with San Joaquin <br /> County staff and Caltrans: <br /> SR 1321 Bird Road <br /> • SR 1321 Koster Road <br /> Blewett Road / Bird Road <br /> Blewett Road 1 Koster Road <br /> .f Bird Road 11-5 NB Ramp .- <br /> �� Bird Road 1 1-5 SB Ramps <br /> • Bird Road 1 New Quarry Access Road <br /> The last three intersections are associated with Alternative 3 (Vemalis Interchange). Other <br /> intersections in the study area would not serve a significant amount of Koster Road Quarry <br /> traffic. <br /> The newly constructed intersection of SR 132 and Bird Road required additional analysis <br /> because of its unique geometric configuration. Although SR 132 was widened enough to <br /> eventually accommodate four through lanes with a divided roadway design, only two <br /> through lanes were provided (one lane in each direction). Acceleration lanes for Teichert <br /> Aggregates trucks were provided adjacent to the through lanes. Because the median is <br /> i <br /> Draft Environmental Impact Report 4-39 ER-96-3 jI <br /> it <br />