11 ATTACHMENT 7 - Laserfiche WebLink

^ For the p.m. peak-hour movement at Bernal Avenue/Angela Street, the Oak Grove project would increase the delay by 12.5 percent, from 31.3 to 35.2 seconds. The only intersection at which delay would increase substantially with the proposed project is Bernal Avenue/Hearst Drive -which would be the expected outcome since Hearst Drive is the main access route from Bernal Avenue to the Oak Grove site. Bernal Avenue/Hearst Drive is a three-way intersection with Hearst Drive and Clinton Place controlled by a stop sign. Bernal Avenue is a through street having no traffic controls. The mitigation to this intersection is a new traffic signal. The projected traffic volumes for the proposed project combined with the increase in traffic volume on Bernal Avenue creates traffic volumes with an insufficient number of acceptable gaps in traffic. A traffic signal is required to allow the side streets to access Bernal Avenue. A signal installed at this intersection would improve the a.m. level-of-service to LOS A - 8.6 seconds of total delay -and the p.m. level-of-service to LOS B - 10.4 seconds of delay. However, the Kottinger Ranch homeowners oppose the traffic signal, citing their concerns that the section of Hearst Drive between Bernal Avenue and Concord Drive would become a "cut-through traffic route" because of the controlled, left-turn movement provided between Hearst Drive and Bernal Avenue. For this reason, the Kottinger Ranch homeowners want to retain the existing stop sign. In lieu of providing this traffic signal, staff believes that a new traffic signal at the Bernal Avenue/Kottinger Drive intersection would mitigate the impacts to the Bernal Avenue/Hearst Drive intersection. The installation of a traffic signal will group the vehicles approaching Hearst Drive, instead of having an even dispersion that results from a stop sign. Traffic Fees The applicant will pay $1,000,000 in traffic fees to the City with the recordation of the first subdivision map for this development. These fees will be applied to the following items: ^ The City's traffic development fees for the 51 units at the rates in effect when the first subdivision map is recorded, estimated at $250,000. ^ Cover the costs to install traffic calming measures on Hearst Drive to slow vehicle speeds on this street. A significant concern of the Kottinger Ranch homeowners is the high vehicle speeds on this residential street. The type of traffic calming measures will be decided by the City's Traffic Engineer working with the Kottinger Ranch homeowners association and could include standard measures -speed humps, radar speed signs, etc. -and/or major street improvements including median islands, narrowed street sections, etc. ^ Install a traffic signal at the Bernal Avenue/Kottinger Drive intersection with the first development phase, which is expected to improve the traffic levels-of-service at the Bernal Avenue/Hearst Drive intersection. PUD-33 Page 24 of 59 June 13, 2007