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} <br />STATE OF CALIFORNIA -BUSINESS, TRANSPORTATION AND HOUSING AGENCY GRAY DAVIS, Governor <br />DEPARTMENT OF TRANSPORTATION <br />P.O. BOX 2048 (1976 E. CHARTER WAY) <br />STOCKTON, CA 95201 <br />TDD (209) 948-7981 <br />(209) 948-3975 <br />December 16, 1999 <br />_'n 1 T IW'J <br />Uwa <br />Community Devel..""a WW'. <br />10 -SJ -I-205 P.M. 001.178 <br />San Joaquin County <br />GP -99-12 (Pre -Application) <br />Ms. Kerry Sullivan <br />San Joaquin County <br />Community Development Department <br />1810 East Hazelton Avenue <br />Stockton, CA 95205 <br />Dear Ms. Sullivan: <br />Thank you for the opportunity to review a General Plan pre -application to change 169 acres from <br />A/G to I/L, and 25 acres from A/G to C/FS. The project site is located on the southwest corner <br />of Interstate 205 and Mountain House Parkway, west of Tracy. <br />Transportation Planning has circulated the above referenced project through our normal <br />interdepartmental review process. We offer the following comments: <br />• Though the proposed land use change is not development specific at this point, the proposed <br />General Plan pre -application does in fact have potential traffic impacts. Traffic impacts <br />resulting from the increased densities will impact I-205 and the Mountain House Parkway <br />interchange. In order to address the potential impacts, traffic projects should be prepared. <br />This analysis should include the following: <br />• Trip generation, distribution and assignment. Documentation should include source and <br />methodology of the data that is presented. <br />• ADT, AM and PM peak hour volumes on all significantly affected streets and highways, <br />including freeway ramps and crossroads, and controlling intersections. Traffic volumes <br />should be presented for existing and future conditions, the latter for a cumulative build and <br />no -build scenario that includes all approved developments in the area. The coverage should <br />include all traffic that would affect the facilities evaluated and should not be limited to <br />projects under the jurisdiction of the local agency. <br />• Traffic impacts should be evaluated in terms of Level of Service (LOS) analysis that is <br />consistent with the most recent version of the Highway Capacity Manual (HCM), or by a <br />uniform methodology, which is consistent with the HCM. <br />609540 <br />