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Vehicle Speed/1-year Average DPM Emission Factor (2023) from EMFAC2021 for South Coast AB <br />Emission Factor <br />Speed (mph) /mi <br />LDA 70 0.032103165 <br />LDT1 70 0.276471063 <br />LDT2 70 0.005854775 <br />MDV 60 0.007292192 <br />LHDT1 60 0.016449082 <br />LHDT2 60 0.016170405 <br />MHDT 55 0.013060 <br />HHDT 55 0.021506 <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 />25.6 <br />2.96E-04 <br />LDT2 <br />0.0 <br />0.00E+00 <br />MDV <br />0.0 <br />0.00E+00 <br />LHDT1 <br />7.9 <br />9.09E-05 <br />LHDT2 <br />4.7 <br />5.43E-05 <br />MHDT <br />7.9 <br />9.19E-05 <br />HHDT <br />76.8 <br />8.89E-04 <br />NB SB <br />Total <br />122.9 <br />1.42E-03 7.11E-04 7.11E-04 <br />Apx-61 <br />