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Vehicle Speed/1-year Average DPM Emission Factor (2026-2039) from EMFAC2021 for South Coast AE <br />Emission Factor <br />Speed (mph) /mi <br />LDA 70 0.007178506 <br />LDT1 70 0.081950439 <br />LDT2 70 0.003255776 <br />MDV 60 0.002511334 <br />LHDT1 60 0.010165765 <br />LHDT2 60 0.011369246 <br />MHDT 55 0.006363 <br />HHDT 55 0.019983 <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 />7.6 <br />8.78E-05 <br />LDT2 <br />0.0 <br />0.00E+00 <br />MDV <br />0.0 <br />0.00E+00 <br />LHDT1 <br />4.9 <br />5.62E-05 <br />LHDT2 <br />3.3 <br />3.82E-05 <br />MHDT <br />3.9 <br />4.48E-05 <br />HHDT <br />71.4 <br />8.26E-04 <br />NB SB <br />Total <br />91.0 <br />1.05E-03 5.27E-04 5.27E-04 <br />Apx-65 <br />