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P18-0078, P18-0080, P18-0081, PUD-130 and Tract 8569 (Hidden Canyon) Planning Commission <br />24 of 28 <br />Additional improvements include roadway widening, intersection enhancements, and bicycle <br />and pedestrian facilities to improve multimodal connectivity. These improvements are <br />consistent with City standards and have been reviewed and found acceptable by the City’s <br />Traffic Engineer. <br />As analyzed in the EIR, the project would result in vehicle miles traveled (VMT) impacts that <br />exceed applicable thresholds. While feasible mitigation measures would be implemented to <br />reduce VMT, including design features that support alternative modes of transportation, these <br />impacts would remain significant and unavoidable. This condition is not unique to the project <br />and reflects broader regional travel patterns associated with low-density residential <br />development in areas with limited transit accessibility. Further discussion on this is in the <br />Environmental Assessment section of this report. <br />Notwithstanding the VMT findings, the proposed circulation improvements would enhance local <br />traffic operations and safety conditions along Dublin Canyon Road and surrounding roadways. <br />Drainage <br />A comprehensive drainage strategy has been incorporated into the project design to ensure <br />that post-development runoff does not exceed pre-development conditions. Stormwater runoff <br />would be managed through a combination of on-site detention, drainage improvements, and <br />best management practices (BMPs) in compliance with City standards and regional <br />requirements. The project would be required to prepare and implement a Stormwater Control <br />Plan, consistent with the requirements of the Alameda County Clean Water Program, to <br />address water quality, erosion control, and long-term maintenance of drainage facilities. With <br />implementation of these measures, grading and drainage impacts would meet all regulatory <br />requirements, and any potential environmental impacts would be less than significant. <br />Measures PP and QQ <br />The proposed project has been designed to minimize development within the site’s steeper <br />areas; however, it includes grading associated with roadway construction, lot creation, and <br />related improvements on slopes of 25 percent or greater. Consistent with prior City Council <br />interpretation of Measure PP, roads are not considered “structures” and therefore are not <br />prohibited within these areas. Accordingly, the proposed staging area, which does not include <br />structural development, is not subject to Measure PP restrictions. The grading necessary to <br />establish the roadway network that provides access to the subdivision and individual lots <br />facilitates a site design that avoids placement of residential structures on slopes of 25 percent <br />or greater. Furthermore, the proposed project is not near a ridgeline. It is noted that, while the <br />mapping shows several small areas that would represent steep slopes beneath proposed lots, <br />these areas represent minor topographic variations (e.g. rocks, small hillocks and <br />depressions), detected due to the high degree of precision available in today’s survey <br />technology, within larger areas that otherwise are below the threshold 25% grades. These <br />features are topographic anomalies that in staff’s view fall outside the scope or intent of the <br />voter approved hillside protection measure. <br />Therefore, the project, as proposed, conforms to Measures PP and QQ.