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Vehicle Speed/1-year Average DPM Emission Factor (2024-25) from EMFAC2021 for South Coast AE <br />Emission Factor <br />Speed (mph) <br />(g/mi) <br />LDA <br />70 <br />0.026824286 <br />LDT1 <br />70 <br />0.274504243 <br />LDT2 <br />70 <br />0.004311092 <br />MDV <br />60 <br />0.006380956 <br />LHDT1 <br />60 <br />0.014224915 <br />LHDT2 <br />60 <br />0.014348385 <br />MHDT <br />55 <br />0.011189 <br />HHDT <br />55 <br />0.021102 <br />Vehicle Emissions <br />Vehicle Emissions = Emission Factor (g/mi) x Mile/Trip x Trip/Day <br />Length of Roadway Segment 592.6 meters or <br />0.368 miles <br />Assumption: over an annual period, traffic is assumed to be uniformly distributed during the day <br />Daily Emissions <br />Hourly Emissions <br />(g/day) <br />(g/sec) <br />LDA <br />0.0 <br />0.00E+00 <br />LDT1 <br />25.4 <br />2.94E-04 <br />LDT2 <br />0.0 <br />0.00E+00 <br />MDV <br />0.0 <br />0.00E+00 <br />LHDT1 <br />6.8 <br />7.86E-05 <br />LHDT2 <br />4.2 <br />4.82E-05 <br />MHDT <br />6.8 <br />7.88E-05 <br />HHDT <br />75.4 <br />8.73E-04 <br />NB SIB <br />Total <br />118.6 <br />1.37E-03 6.86E-04 6.86E-04 <br />Apx-63 <br />