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<br />Greystar - El Camino & Diller - Redwood City <br />El Camino Real (SR 82) Traffic Data and PM2.5 & TOG Emission Factors - 30 mph <br />Analysis Year = 2020 <br />Emission Factors <br />2014 Caltrans 2020 Number Diesel All Vehicles Gas Vehicles <br />Number Number 2020 Diesel Vehicle Vehicles Total Exhaust Exhaust Running <br />Vehicle Vehicles Vehicles Percent Vehicles Speed DPM PM2.5 PM2.5 TOG TOG <br />Type (veh/day)(veh/day)Diesel (veh/day)(mph)(g/VMT)(g/VMT)(g/VMT)(g/VMT)(g/VMT) <br />LDA 19,653 20,832 1.09%226 30 0.0136 0.0198 0.0020 0.0192 0.051 <br />LDT 12,591 13,347 0.17%23 30 0.0093 0.0197 0.0019 0.0224 0.071 <br />MDT 543 575 10.35%60 30 0.0130 0.0233 0.0026 0.0390 0.152 <br />HDT 213 226 82.31%186 30 0.0357 0.1074 0.0294 0.1330 0.108 <br />Total 33,000 34,980 -495 30 ----- <br />Mix Avg Emission Factor 0.02164 0.02034 0.00216 0.02085 0.06061 <br />1.06 <br />Vehicles/Direction 17,490 248 <br />Avg Vehicles/Hour/Direction 729 10 <br />Traffic Data Year = 2014 <br />Caltrans 2014 Traffic AADTs & 2014 Truck AADTs Total Truck by Axle <br />Total Truck 2 3 4 5 <br />Rte 82, B Redwood City/Broadway 33,000 756 543 103 57 53 <br />71.80%13.63%7.60%6.97% <br />Percent of Total Vehicles 2.29%1.64%0.31%0.17%0.16% <br />1.00% <br />Increase From 2014 <br />Traffic Increase per Year (%) = <br /> <br />Greystar - El Camino & Diller - Redwood City <br />El Camino Real (SR 82) Traffic Data and Entrained PM2.5 Road Dust Emission Factors <br />E2.5 = [k(sL)^0.91 x (W)^1.02 x (1-P/4N) x 453.59 <br />where: <br />E2.5 = PM2.5 emission factor (g/VMT) <br />k = particle size multiplier (g/VMT) [kPM2.5 = kPM10 x (0.0686/0.4572) = 1.0 x 0.15 = 0.15 g/VMT]a <br />sL = roadway specific silt loading (g/m2) <br />W = average weight of vehicles on road (Bay Area default = 2.4 tons)a <br />P = number of days with at least 0.01 inch of precipitation in the annual averaging period <br />N = number of days in the annual averaging period (default = 365) <br />Notes: a CARB 2014, Miscellaneous Process Methodology 7.9, Entrained Road Travel, Paved Road Dust (Revised and updated, April 2014) <br />PM2.5 <br />Silt Average Emission <br />Loading Weight No. Days Factor <br />Road Type (g/m2)(tons)County ppt > 0.01"(g/VMT) <br />Major 0.032 2.4 San Mateo 60 0.01532 <br />SFBAABa SFBAABa <br />Road Type <br />Silt <br />Loading <br />(g/m2)County <br />>0.01 inch <br />precipitation <br />Collector 0.032 Alameda 61 <br />Freeway 0.02 Contra Costa 60 <br />Local 0.32 Marin 66 <br />Major 0.032 Napa 68 <br />San Francisco 67 <br />San Mateo 60 <br />Santa Clara 64 <br />Solano 54 <br />Sonoma 69 <br />8.A. - Page 100