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Vehicle Speed/1-year Average DPM Emission Factor (2040-2053) from EMFAC2021 for South Coast AB <br />Emission Factor <br />Speed (mph) /mi <br />LDA 70 0.000942857 <br />LDT1 70 0.003231599 <br />LDT2 70 0.003182419 <br />MDV 60 0.000793301 <br />LHDT1 60 0.008634644 <br />LHDT2 60 0.010567758 <br />MHDT 55 0.004181 <br />HHDT 55 0.018980 <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 />0.3 <br />3.46E-06 <br />LDT2 <br />0.0 <br />0.00E+00 <br />MDV <br />0.0 <br />0.00E+00 <br />LHDT1 <br />4.1 <br />4.77E-05 <br />LHDT2 <br />3.1 <br />3.55E-05 <br />MHDT <br />2.5 <br />2.94E-05 <br />HHDT <br />67.8 <br />7.85E-04 <br />NB SB <br />Total <br />77.8 <br />9.01E-04 4.50E-04 4.50E-04 <br />Apx-67 <br />