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City of Pleasanton—Hidden Canyon Residences and Preserve Draft EIR Air Quality FirstCarbon Solutions 3.2-31 https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-02 Air Quality.docx following screening criteria are met, operation of the proposed project would result in a less than significant impact related to CO: • The project is consistent with an applicable congestion management program established by the county congestion management agency for designated roads or highways, the regional transportation plan, and local congestion management agency plans. • Project-generated traffic would not increase traffic volumes at affected intersections to more than 44,000 vehicles per hour. • Project-generated traffic would not increase traffic volumes at affected intersections to more than 24,000 vehicles per hour where vertical and/or horizontal mixing is substantially limited (e.g., tunnel, parking garage, bridge underpass, natural or urban street canyon, below-grade roadway). In accordance with SB 743, transportation analysis in accordance with CEQA no longer uses delay- based metrics such as congestion to analyze project impacts. As previously discussed, the proposed project includes annexation into the City of Pleasanton, along with a General Plan Amendment of PH Overlay to LDR, a PUD rezoning. The proposed project site would be rezoned from unincorporated to Planned Unit Development-Low Density Residential (PUD-LDR). The project site was evaluated as PUD-LDR in the City’s 2023–2031 Housing Element Update. Once annexed and rezoned, the proposed project would be consistent with the underlying general plan land use designation and was considered in the City’s most recently adopted Housing Element. The proposed project is consistent with the land use designation defined in the City’s General Plan, which is therefore consistent with the applicable congestion management program, and the proposed project is consistent with the first criterion. The nearest intersection with recorded daily traffic volumes is Interstate 580 (I-580) and Interstate 680 (I-680) according to the Caltrans Traffic Census Program 28 which provides traffic volume data for the State highway system. According to the Traffic Census Program, the sections of I-580 near the project site (at I-680) receive a peak-hour traffic volume of 21,100 vehicles. According to the Institute of Transportation Engineers (ITE) Trip Generation Manual 10th Edition, the proposed project is anticipated to generate 407 daily trips (including the trips associated with the single-family homes, and the new trips associated with the buildout of the trail head connecting the proposed project site to the East Bay Park District). Therefore, even with the addition of daily trips generated by the proposed project, no nearby intersections impacted by the proposed project would experience traffic volumes of 24,000 to 44,000 vehicles per hour. Thus, the proposed project would not result in any nearby intersection having peak-hour traffic volumes exceeding 44,000 vehicles per hour, nor would the proposed project result in increased traffic volumes at affected intersections to more than 24,000 vehicles per hour where vertical and/or horizontal mixing is substantially limited. Therefore, based on the above criteria, the proposed project would not exceed the CO screening criteria and would have a less than significant impact related to CO. 28 California Department of Transportation (Caltrans). Traffic Census Program. Website: https://dot.ca.gov/programs/traffic- operations/census. Accessed June 2, 2024.