complete ef_europe database with 2016

[Joaobazzo]

The data we're using, from 2019, are not complete. We should complete with vein/sysdata.rda and https://www.eea.europa.eu/publications/emep-eea-guidebook-2016 pay attention to technology

[Joaobazzo]

load("../vein/R/sysdata.rda")
names(sysdata)
ef_hdv <- rbind(sysdata$hdv_criteria[, 1:20], 
                sysdata$hdv_ghg[, 1:20])
ef_hdv <- ef_hdv[ef_hdv$VEH != "Trucks", ]
format(object.size(ef_hdv), units = "Mb")
unique(ef_hdv$POLLUTANT)
saveRDS(object = ef_hdv, file = "ef_hdv.rds")

[Joaobazzo]

@ibarraespinosa , here are CO2 EMEP/EEA EF's for "Urban Buses Standard 15 - 18 t". I'm wondering if this limitation of EF lower than 11 km/h would result in too much problem for our overall estimates — since our GPS data has a lot of observations below 11km/h. Do you have any thoughts on it?

[ibarraespinosa]

@Joaobazzo Man, the guidelines says the EF are only valid for the speed range. I guess that if Ntziachristos would review an article with EF for the whole speed range (<10 km/h and >110 km/h) would argue against it. Nevertheless, I suppose that some literature studies using COPERT emission factors have already been used with the full speed range.

1. My suggestion make a review of those studies and find some conclusions.
2. Another thing, a sensitive analises would be useful. Estimte the emissions with ALL the speed and another with only the valid speeds and compare.
3. A third approach would be buying COPERT street and see how they estimate the bus emissions when speed os <10 km/h and >110 km/h

[Joaobazzo]

Thanks Sérgio!

[Joaobazzo]

Using the Speed Driving Cycle (SDC), 34.12 km/h, to fill observations out of valid speed range results in 25% less PM10 and 14% less PM10 for SPTRANS GTFS. I'll also review some other studies.