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San Joaquin County Planning Commission <br /> September 4, 1997 <br /> Page 2 <br /> traffic impacts of the proposed DSS project . This approach is <br /> standard and normally acceptable . With however, the high traffic <br /> volumes on State Route 132 and the particularly slow acceleration <br /> of large gravel trucks, both loaded and unloaded, a detailed <br /> analysis, often required by Caltrans, is appropriate. Using a <br /> traffic operational simulation program, OMNI-MEANS determined <br /> that not only under projected conditions, but also under existing <br /> conditions, significant unmitigated traffic impacts will result <br /> at at-grade intersection of State Route 132 at either Bird Road <br /> or Koster Road, depending on the alternative selected. <br /> Therefore, the proposed concept of reduced hours will not <br /> mitigate the significant traffic impacts in either the existing <br /> or projected cumulative traffic as determined by Caltrans . <br /> The above referenced traffic operational analysis has been <br /> reviewed by both Caltrans and the Department of Public Works of <br /> San Joaquin County and is also available for review upon request . <br /> 4 . Support Caltrans August 1, 1997 Letter. The Caltrans <br /> letter of August 1, 1997 outlines two acceptable traffic <br /> mitigation measures to reduce traffic impacts on State Route 132 . <br /> They include either building an interchange at Bird <br /> Road/Interstate 5 or at Bird Road/State Route 132 . With the Bird <br /> Road/State Route 132 interchange alternative, Caltrans has also <br /> required the widening of State Route 132 to 4 lanes and <br /> modification to the State Route 132/Interstate 5 interchange. <br /> With these additional improvements to the placement of an <br /> interchange at Bird Road/State Route 132, financially, this <br /> interchange concept becomes more expensive than the Bird <br /> Road/Interstate 5 interchange concept location. Your support of <br /> the Caltrans mitigation measures will yield the safest and most <br /> efficient circulation system to serve the mining operators of the <br /> Vernalis area. <br /> I <br /> Thank you for your consideration and support of these <br /> comments . As appropriate, we respectfully request the above to <br /> be incorporated into the Conditions of Approval for the DSS } <br /> project . <br /> Sincerely, <br /> A <br /> MEANS, Ltd. <br /> ee s Tanners <br /> I <br /> Martin Ltd <br /> Principal <br />