5A Public Hearings 2018 0507 - Laserfiche WebLink

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City of San Leandro Alvarado Commerce Center Project 80 Existing Setting The analysis in this section is based primarily on the Traffic Impact Study (TIS) prepared by TJKM in August 2017. The TIS titled Industrial Development on 2756 Alvarado Street is included as Appendix D of this Initial Study. Existing Roadway Network I-880 provides the direct regional access to the project site via an interchange approximately 0.25 mile west of Teagarden Street. I-880 currently has four lanes in the northbound and five lanes in the southbound direction with a posted speed limit of 65 miles per hour. Marina Boulevard is a 2.5 mile arterial roadway providing access to I-880 in the project vicinity in the city of San Leandro. The roadway is a two-lane, undivided roadway east of San Leandro Boulevard, a four lane divided roadway from San Leandro Boulevard to Pacific Avenue, a six-lane divided roadway from Pacific Avenue to I-880 ramps, a four-lane undivided roadway from I-880 ramps to Doolittle Drive, and a two-lane undivided roadway from Doolittle Drive to Neptune Drive. The posted speed limit in the project vicinity is 40 miles per hour. Teagarden Street is a collector roadway connecting Marina Boulevard to Montague Avenue, Aladdin Avenue, and Alvarado Street. The roadway is predominantly two lanes undivided, with on-street parking permitted along some sections. The posted speed limit is 35 miles per hour. Teagarden Street’s name changes to Wayne Avenue north of Marina Boulevard. Alvarado Street is a collector roadway connecting Marina Boulevard to Montague Avenue, Aladdin Avenue, and Teagarden Street. The roadway is predominantly two lanes undivided and the posted speed limit is 40 miles per hour. To evaluate the impacts on the transportation infrastructure due to the addition of traffic from the project, TJKM evaluated five intersections and two roadway segments during weekday A.M. and P.M. peak hours under four study scenarios. The study intersections and roadway segments were evaluated under No Project and Plus Project scenarios for Existing and Cumulative (Year 2035) Conditions. The following study intersections were analyzed (associated traffic controls in parentheses):  Alvarado Street and Aladdin Avenue (Signalized)  Teagarden Street and Fairway Drive/Aladdin Avenue (Signalized)  Alvarado Street and Montague Avenue (Unsignalized)  Alvarado Street and Marina Boulevard (Signalized)  Teagarden Street and Marina Boulevard (Signalized) In addition, roadway segments were assessed qualitatively. Typically, if intersections operate satisfactorily, segments would also operate satisfactorily. Both intersections were analyzed for weekday A.M. and P.M. peak periods, which are the peak periods during which the city road network is busiest. The roadway segments studied include:  Aladdin Avenue between Teagarden Street and Alvarado Street  Alvarado Street between Aladdin Avenue and Montague Avenue. Study intersections were selected based on consultation with City staff, proximity to the project site, and project peak hour trips. 377