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Vehicle Speed/1-year Average DPM Emission Factor (2024-25) from EMFAC2021 for South Coast ABEmission FactorSpeed (mph) (g/mi)LDA 70 0.026824286LDT1 70 0.274504243LDT2 70 0.004311092MDV 60 0.006380956LHDT1 60 0.014224915LHDT2 60 0.014348385MHDT 55 0.011189HHDT 55 0.021102Vehicle EmissionsVehicle Emissions = Emission Factor (g/mi) x Mile/Trip x Trip/Day Length of Roadway Segment 592.6 meters or0.368 milesAssumption: over an annual period, traffic is assumed to be uniformly distributed during the dayDaily Emissions Hourly Emissions(g/day) (g/sec)LDA 0.0 0.00E+00LDT1 25.4 2.94E-04LDT2 0.0 0.00E+00MDV 0.0 0.00E+00LHDT1 6.8 7.86E-05LHDT2 4.2 4.82E-05MHDT 6.8 7.88E-05HHDT 75.4 8.73E-04NB SBTotal 118.6 1.37E-036.86E-046.86E-04Apx-636/27/2022Planning Commission 2 – 223