D5 Annex report WP 3: ETIS Database methodology ... - ETIS plus

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D5 Annex WP 3: DATABASE METHODOLOGY AND DATABASE USER MANUAL – FREIGHT TRANSPORT DEMAND Method variable V13 Method variable V14 Method variable V15 Method variable V16 Method variable V17 Method variable V18 Method variable V19 Method variable V20 Method variable V21 Method variable V22 Method variable V23 Method variable V24 Method variable V25 Method variable V26 Method variable V27 Method variable V28 u=the load class ps= the percentage of annual distance travelled at gradient class s αs= the correction factor for gradient class s pl=the percentage of annual distance travelled at load class u αl= the correction factor for load class u EC= the corrected hot emission/consumption of the vehicle fleet n= the number of vehicles l= the average annual distance travelled w= number of road types (urban, nonurban, motorway) p= the percentage of annual distance travelled excess emission for a trip, expressed in g ω= reference excess emission (at 20 °C and 20 km/h) V= means speed during the cold period (in km/h) T= ambient temperature (in °C) for cold starts δ= undimensioned distance d= travelled distance 122 Document2 27 may 2004
D5 Annex WP 3: DATABASE METHODOLOGY AND DATABASE USER MANUAL – FREIGHT TRANSPORT DEMAND Method variable V29 d c = cold distance Method variable V30 E cold= Cold correction emissions Method variable V31 Ec= traffic excess emissions with a cold engine over 1 km for a given pollutant (in g) Method variable V32 tfi= traffic flow for the studied vehicle type i (in km · veh) Method variable V33 Method variable V34 Method variable V35 Method variable V36 Method variable V37 vi= traffic overall average speed for the studied vehicle type i (km/h) s,= season (winter, summer, middle) E evap= Evaporative correction emissions E evap, VOC, j = VOC emissions due to evaporative losses caused by vehicle category j a j = number of gasoline vehicles of category j Method variable V38 e d = mean emission factor for diurnal losses of gasoline powered vehicles equipped with metal tanks, depending on average monthly ambient temperature, Method variable V39 Method variable V40 Method variable V41 temperature variation and fuel volatility (RVP) S c = average hot and warm soak emission factor of gasoline powered vehicles equipped with carburettor S fi = average hot and warm soak emission factor of gasoline powered vehicles equipped with fuel injection R= hot and warm running losses Document2 27 May 2004 123
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