SU0013309 - Laserfiche WebLink

Home Browse Search

EXECUTIVE SUMMARY The results of this traffic analysis indicate that the proposed relocation of the Aero Turbine Jet Engine Repair Facility to the Stockton airport vicinity, will not have a significant impact on the street circulation system in the near future. The trip generation of the facility at its present location in San Ramon is very low (about 50 trip ends during the peak hour). Since the Aero Turbine company will be performing the same type of business in the near future at the proposed San Joaquin County location, it is assumed that the same trip generation will occur. No mitigation measures are recommended for the project in the near future. As the Aero Turbine company expands its operations at the new facility, and the number of employees gradually grows from 50 to 250, then the trip generation for the project will also increase about five times in magnitude. This will cause additional traffic impacts that should be mitigated. The intersection of the project access with the State Route 99 West Frontage Road should be widened to allow a northbound left turn pocket. Signalization at this location will not be needed, as the future traffic volumes would be too low to warrant a signal. The cumulative traffic scenario within the study area would cause the street system in the same area to reach capacity in many locations. The intersections along Arch Road that were analyzed in this report could not all be mitigated to LOS D or better conditions. Even with four through lanes in each direction on Arch Road, the future intersection with the State Route 99 southbound off-ramp would have severe congestion given the amount of projected office and industrial uses in the area. The only way to mitigate this problem is to either cut back on the amount of development, or to build more roads. Ideally, another major east/west facility should be constructed parallel to and between Arch Road and Charter Way. This facility should also have full access to the State Route 99 freeway through a new interchange. There is nearly three miles of freeway between Arch Road and Mariposa Road on State Route 99, which leaves plenty of room for a new interchange to be constructed between these other two interchanges. The minimum spacing between interchanges, according to Caltrans, is one mile; therefore is is feasible that Caltrans could approve such an interchange. The effects of this possible interchange were not analyzed in this study, but should be analyzed in a separate traffic engineering study to determine the need for such a corridor. Also the State Route 99 freeway would have to be widened to eight lanes north of Arch Road. The project would generate approximately one-fourth of one percent of the total traffic impact for the cumulative scenario during the p.m. peak hour. Since the trip generation for the project was low, there was not an appreciable increase in traffic 2