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of Portola Avenue crossing. West of Hacienda Drive interchange on-ramp relocation up to approximately 140 feet. Modifications to interchanges are required at: Dougherty Road/Hopyard Road, Tassajara Road/Santa Rita Road, Fallon Road/EI Charro Road, Airway Boulevard, and Isabel Avenue. Frontage roads in this section also require modifications. Frontage roads in this section also require modifications. • Express Bus — Modifications extend for 2.2 miles along 1-580. Typical relocation by 88 feet from west of Dougherty Road to the Tassajara Road to the Tassajara Road/Santa Rita Road overcrossing. At the Dublin/Pleasanton Station, relocation up to 100 feet. Modifications to interchanges are required at: Dougherty Road/Hopyard Road, Hacienda Drive, and Tassajara Road. Frontage roads in Dublin require modifications as well. Station Modification and Parking Requirements • Conventional BART — A new platform in the 1-580 median, with pedestrian overcrossings to bus facility at Isabel North and station parking at Isabel South. Additionally, a new two-story end-of-line operations building is also needed. In terms of parking, the Isabel Station requires a total of 3,412 parking spaces: 2,835 in a seven- level parking structure and 577 parking spaces in two surface parking lots. • DMU/EMU — A new transfer platform on the north side of the Dublin/Pleasanton station is required, in addition to new 0.3 mile tail track for BART car storage west of the station. For the Isabel Station, similar modifications are needed as the Conventional BART project. Parking at the Isabel Station requires a total of 2,428 parking spaces in a six-level parking structure. • Express Bus/BRT Alternative — At the Dublin/Pleasanton Station new bus transfer platforms are needed north and south of the BART station platform. To access the platforms, a new bus-only ramp from 1-580 express lanes to the station is required. The track also requires an extension of 0.1 miles east. Parking relocate approximately 210 existing parking spaces to either (1) a surface lot adjacent to existing lot south of 1-580; or (2) a three-level parking structure on the existing BART lot south of 1-580. At Laughlin Road, new surface parking lot with approximately 230 parking spaces. • Enhanced Bus Alternative — No station modifications are required. Ridership The Dublin Pleasanton station is the current "end of line" station and because of this, the station receives a large number of riders from outside of the Dublin Pleasanton area (Livermore and the Central Valley). The station parking lots located on the Dublin and Pleasanton side are completely full by 6:00 AM limiting local access to the station. Extension of Bart to Livermore creates a new "end of line" station in Livermore at the Isabel Interchange. The Proposed Project includes a 3,400 space parking structure. This new station in Livermore allows for greater use of the Dublin Pleasanton station for Dublin and Pleasanton residents. The image shows where new riders will originate.