5A Public Hearings 2018 0507 - Laserfiche WebLink

Home

Environmental Checklist Transportation/Traffic Initial Study – Mitigated Negative Declaration 81 Weekday intersection turning movement volumes for Aladdin Avenue between Teagarden Street and Alvarado Street and Alvarado Street between Aladdin Avenue and Montague Avenue were collected on Thursday, November 3, 2016 from 7:00 a.m. to 9:00 a.m. (A.M. Peak) and from 4:00 p.m. to 6:00 p.m. (P.M. Peak). Weekday 24-hour bi-directional tube counts were collected in the month of November 2016 on Aladdin Avenue between Teagarden Street and Alvarado Street and Alvarado Street between Aladdin Avenue and Montague Avenue. These traffic counts were taken during a non-holiday week, a weekday when local schools were in session, and when the weather was fair (TJKM 2017). Thresholds of Significance The City of San Leandro utilizes Synchro software and the Highway Capacity Manual (HCM) 2000 methodology to evaluate signalized and unsignalized intersection operations.  Signalized Intersection. The HCM procedure calculates a weighted average stop delay in seconds per vehicle at a signalized intersection and assigns a Level of Service (LOS) designation based upon the delay  Unsignalized Intersection. The HCM methodology calculates a weighted average stop delay in seconds per vehicle for each controlled intersection leg and for the intersection as a whole. A LOS designation is assigned based upon the weighted average control delay per vehicle on the intersection leg with the worst delay at one- or two-way stop-controlled intersections. For all- way stop-controlled intersections, a LOS designation is based upon the weighted average control delay for all intersection legs, similar to the LOS designation for signalized intersections The project would create a significant impact if it caused one or more of the following:  A signalized intersection to operate at LOS E or F  An increase in the volume-to-capacity (V/C) ratio of 0.05 or more for signalized intersections that operate at LOS E or F under No Project conditions  An increase in average delay of more than 5 seconds on the worst approach for unsignalized intersections that operate at LOS E or F under No Project conditions Impact Analysis a. Would the project conflict with an applicable plan, ordinance or policy establishing a measure of effectiveness for the performance of the circulation system, taking into account all modes of transportation, including mass transit and non-motorized travel and relevant components of the circulation system, including but not limited to intersections, streets, highways, and freeways, pedestrian and bicycle paths, and mass transit? The project would involve the redevelopment of a 6.9-acre parcel currently occupied by three warehouse type buildings. The new 159,450-square foot development would include 20,000 square feet of office space and 139,450 square feet of space to accommodate warehouse or advanced manufacturing uses. As the exact future uses in the proposed new building are unknown, two different uses were evaluated in the TIS, warehouse and advance manufacturing. Existing Conditions Traffic operations were evaluated at the study intersections under existing conditions. All signalized intersections were found to operate within City of San Leandro standards of LOS D or better during 378