Variable
Unit
Definition
EFAUTO,PEF_{AUTO, P}(grams/mile)Speed-based running exhaust emission factor for affected roadway before implementation (NOx, VOC, PM, or CO) during peak hours
EFAUTO,OPEF_{AUTO, OP}(grams/mile)Speed-based running exhaust emission factor for affected roadway before implementation (NOx, VOC, PM, or CO) during off-peak hours
EFBUS,P,AEF_{BUS, P, A}(grams/mile)Speed-based running exhaust emission factor for transit vehicle (NOx, VOC, PM, or CO) during peak hours – after
EFBUS,P,BEF_{BUS, P, B}(grams/mile)Speed-based running exhaust emission factor for transit vehicle (NOx, VOC, PM, or CO) during peak hours – before (Applicable only for transit replacement)
EFBUS,OP,AEF_{BUS, OP, A}(grams/mile)Speed-based running exhaust emission factor for transit vehicle (NOx, VOC, PM, or CO) during off-peak hours – after
EFBUS,OP,BEF_{BUS, OP, B}(grams/mile)Speed-based running exhaust emission factor for transit vehicle (NOx, VOC, PM, or CO) during off-peak hours – before (Applicable only for transit replacement)
TEFAUTOTEF_{AUTO}(grams/trip)Auto trip-end emission factor (NOx, VOC, PM, or CO)
TEFBUS,ATEF_{BUS, A}(grams/trip)Bus (or other transit vehicle) trip-end emission factor (NOx, VOC, PM, or CO) – after
TEFBUS,BTEF_{BUS, B}(grams/trip)Bus (or other transit vehicle) trip-end emission factor (NOx, VOC, PM, or CO) – before (Applicable only for transit replacement)
VMTBUS,P,AVMT_{BUS, P, A}VMT by transit vehicle during peak hours – after
VMTBUS,P,BVMT_{BUS, P, B}VMT by transit vehicle during peak hours – before (Applicable only for transit replacement)
VMTBUS,OP,AVMT_{BUS, OP, A}VMT by transit vehicle during off-peak hours
VMTBUS,OP,BVMT_{BUS, OP, B}VMT by transit vehicle during off-peak hours – before (Applicable only for transit replacement)
VMTR,PVMT_{R, P}Reduction in automobile VMT during peak hours
VMTR,OPVMT_{R, OP}Reduction in automobile VMT during off-peak hours
VTBUS,AVT_{BUS, A}(trips)Vehicle trips by bus or other transit vehicle – after
VTBUS,BVT_{BUS, B}(trips)Vehicle trips by bus or other transit vehicle – before
VTR,PVT_{R, P}(trips)Reduction in number of automobile vehicle trips during peak hours
VTR,OPVT_{R, OP}(trips)Reduction in number of daily automobile vehicle trips during off-peak hours