14 ATTACHMENT 6 - Appendix A - E

City of Pleasanton–Spotorno Ranch Reduced Development Project Initial Study/Consistency Checklist Environmental Checklist FirstCarbon Solutions 157 https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480021/Consistency Checklist/21480021 Spotorno Ranch Consistency Checklist ScreenCheck.docx Section 15064.3, subdivision (b), which relates to the project’s impacts on VMT, because this question was not a part of the CEQA checklist at the time. c) Roadway Safety Hazards Would the project: Substantially increase hazards due to a geometric design feature (e.g., sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? The 1998 HVSP FEIR determined that additional traffic in the project area would increase the potential for accidents and safety hazards, particularly on Happy Valley Road. The 1998 HVSP FEIR determined that roadway improvements and new traffic signs called for in the Specific Plan will improve traffic safety and mitigate potential hazards resulting from increased traffic. The 1998 HVSP FEIR concluded that those impacts would be less than significant with mitigation. Access to the project site would be provided via the proposed Spotorno Ranch Drive, which would connect to Westbridge Lane on the eastern side of the proposed residential area, and to Alisal Street on the western side of the project site. The proposed project would not include the construction of Bypass Road linking Westbridge Lane with Sycamore Creek Way, which was previously proposed in the 1998 HVSP FEIR. The proposed project would be constructed to meet existing City design standards. According to the Transportation Assessment Update, the connection to Alisal Street would occur where the roadway makes a 90-degree bend. The intersection influence area is also in proximity to a driveway for the Faith Chapel Assembly of God. These factors could create right-of-way confusion. Spotorno Ranch Road would form a T-intersection at Westbridge Lane. Therefore, the analysis recommended: (1) reconstructing the future intersection Spotorno Ranch Road at Alisal Street such that the west leg of the intersection T’s into the north–south leg; and (2) providing stop control for vehicles traveling eastbound on Alisal Street or consider implementing an all-way stop-control. Signage should be installed on Alisal Street for vehicles traveling northbound to indicate that vehicles must turn left to remain on Alisal Street. New intersection lighting may need to be installed, consistent with the requirements in the HVSP that allows safety lighting to be installed at intersections. Additionally, the Transportation Assessment Update recommends that: (1) the future intersection of Spotorno Ranch Road at Westbridge Lane be installed with a stop sign on Spotorno Ranch Road for vehicles turning to Westbridge Lane, and that (2) any landscaping plans for this area should be reviewed such that future landscaping does not block sight distance. The HVSP identified 12-foot lane width as the preferred width for new roadways with the area, although 10 to 12 feet is permitted on some roadways. Although the HVSP identifies 12-foot travel lanes, those are typically for roadways without trails or sidewalks. Since Spotorno Ranch Road would provide a trail on one side of the street, and a sidewalk on the other, the added width of the travel lane to accommodate other travel modes could encourage higher vehicle speeds. The need for 12- foot-wide roadways should be balanced against other HVSP goals.