15 - Laserfiche WebLink

Attachment 1 —Project Alternatives Comparison Conventional BART Project and Project Alternatives Statistics The following statistics are provided by conventional BART project and project alternatives: Construction Cost (in $2016) • Conventional BART — $1,635,000,000 • DMU — $1,600,000,000 • EMU — $1,670,000,000 • Express Bus/BRT - $ 380,000,000 • Enhanced Bus - $ 25,000,000 It is apparent the difference in project costs relate to whether a rail extension is chosen, regardless of the type. All three rail extension options require widening of 1-580, modifications to some interchanges and surface frontage roads, and a maintenance and operations facility for storage and repair. Right of Way Impact Conventional Bart has the least impact to the City of Pleasanton Right of Way. The design is a simple extension of the tracks in the median to Livermore and minimal widening is needed through Pleasanton, the two locations that require 2-5 feet of right of way are at the Santa Rita and El Charro overcrossing. DMU/EMU has similar widening needs at Santa Rita and El Charro, but also requires widening at the Dublin Pleasanton BART station, as a parallel set of tracks is necessary to bring the DMU/EMU units parallel to the existing station. The Express Bus alternative has the greatest impact, as significant widening is needed to accommodate a new bus loading zone in the median of 1-580 next to the BART tracks. Eastbound 1-580 Westbound 1-580 AA. -i _ , Express Bus Cross-section 1-580 Relocation The project inevitably requires modifications to 1-580 and BART Stations, below is a summary of the required modifications for each alternative: • Conventional BART — Modifications extend for 5.6 miles along 1-580. Typical relocation by approximately 46 feet, from just east of Hacienda Drive interchange to west of Portola Avenue overcrossing. Modifications to interchanges are required at: Santa Rita Road, El Charro Road, Airway Boulevard, and Isabel Avenue. Frontage roads in this section also require modifications. • DMU/EMU — Modifications extend for 7.1 miles along 1-580. Typical relocation by approximately 46 feet, from west of Dougherty Road/Hopyard Road Interchange to west