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Santa Ana — Garden Grove Streetcar Project <br />Traffic Study Addendum <br />1.0 Introduction <br />The cities of Santa Ana and Garden Grove, in cooperation with the Orange County Transportation Authority (OCTA), <br />prepared an Environmental Assessment/Draft Environmental Impact Report (EA/DIER) in May 2014 for a fixed <br />guideway project (Project) that would provide high frequency transit service between the Santa Ana Regional <br />Transportation Center (SARTC) and a new multi -modal transportation center to be located in the city of Garden <br />Grove. As part of the EA/DEIR, a Traffic Impact Assessment (October 2012) was conducted that analyzed a No Build <br />Alternative, a Transportation System Management (TSM) Alternative, and two Build Alternatives including Streetcar <br />Alternative 1 and 2. The Build Alternative (Streetcar Alternative 1) was subsequently selected as the Locally <br />Preferred Alternative (LPA). <br />Streetcar Alternative 1 includes construction and implementation of a streetcar rail line between Harbor Boulevard <br />and SARTC. Streetcars would follow an east -west alignment on the Pacific Electric right-of-way (PE ROW) from <br />Harbor Boulevard to Raitt Street, then along Santa Ana Boulevard to Ross Street, then in a Santa Ana Boulevard and <br />Fourth Street couplet configuration through the downtown area. The couplet converges on Santa Ana Boulevard at <br />Mortimer Street, where the bi-directional tracks continue on Santa Ana Boulevard to SARTC. Streetcar Alternative <br />1 is approximately 4.0 miles in length with 20 directional stations spaced at approximately one-third mile intervals. <br />1.1 Study Purpose <br />The purpose of this Traffic Study Addendum (Addendum) is to update the previous Traffic Impact Assessment based <br />on proposed Project modifications and required additional analyses. The five Project modifications and additional <br />analyses are summarized below: <br />• Reclassification of Santa Ana Boulevard —The Project includes a proposal to reclassify Santa Ana Boulevard <br />between Raitt Street and Shelton Streetfrom a four -lane undivided roadwayto a two-lane roadway (divided <br />with a center left turn lane or raised median with left -turn pockets). The Addendum will update both the <br />roadway segment capacity and level of service calculations based on this reclassification. <br />• Relocation of Santa Ana Boulevard Stations — The Project proposes to relocate and modify streetcar <br />stations between Ross Street and Main Street. The westbound Ross Street station would be relocated from <br />the far side of Ross Street to the nearside of Ross Street. The four stations of Santa Ana/Broadway, Santa <br />Ana/Main, 4th/Broadway, and 41h/Main would be consolidated to two stations located at Santa <br />Ana/Sycamore and 4th/Sycamore. The intersection level of service results at these intersections will be <br />updated as part of this Addendum to reflect the proposed relocations. <br />• Fairview Street Grade Crossing Analysis — As part of the Traffic Impact Assessment, the Fairview Street <br />grade crossing was analyzed based on queues from the upstream Fairview Street/Civic Center Drive <br />intersection. The analysis did not include a detailed evaluation of the interface with the downstream <br />intersection of Fairview Street/5th Street. Due to the proximity of the proposed crossing to the two <br />intersections of Fairview Street/Civic Center Drive and Fairview Street/5th Street, it is anticipated that the <br />® 1 <br />f�� <br />