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APPENDIX C Assumed Street Widenings and Extensions in Various Network Alternatives The modifications to the "existing plus approved" street network (Alternative A) undertaken in Alternatives B and C are widenings, extensions, and an interchange which presently are a part of the City's Circulation Element. These streets are currently partially built or unbuilt. They form the simplest starting point for reviewing alternatives since all have long been a part of the City's traffic plans. A full description of all street widenings was included in the January 11, 2005 workshop staff report and is summarized here. A full description and discussion of the street extensions and interchange is included in this Appendix. Bemal Avenue Widenin~ Bernal Avenue would be widened to four lanes on the following segments: --Foothill Road to 1-680 - portions are fully built, requires bridge widening beyond bridge currently designed and in C.I.P. --First Street to Independence - requires restriping only if bike lanes are removed/relocated. --Angela Street to Nevada Street requires restriping/removal of on-street parking and widening one lane northbound from Vineyard (N) to Tawny. The Sunol to Vineyard segment attracts considerable future traffic, both local traffic and regional cut-through. Note that the 2-lane segment from Independence to Angela remains, creating a constraint on use of this route as a full-length by-pass of the First St. corridor. Widening the segments here shifts some traffic from First and Main where excess capacity does not exist. Widening the Foothill - 1-680 segment was shown to have only a minor effect on traffic switches. Busch Road Widening Busch Road would become a four-lane, divided roadway from Valley to E1 Charro. This street will be fully widened from Valley to Ironwood Drive by the Ponderosa project on Busch Ranch. The remainder is two lanes, partially private at the Hanson site. Right-of- way and improvement would be completed as adjoining vacant/underdeveloped lands are developed. In both Alternatives B and C this street is heavily used by traffic seeking to use an El Charro route either north or south in order to avoid the Stanley-Valley or 1-580 congestion. Traffic is heavily worker trips, although regional cut-through traffic is projected to use this street as well. Land uses to be developed on the Hanson and Kie- Wit properties are linked to the rest of the City by this arterial and would be primary