Create script that generates Emission rates per speed, weight, county etc.

[haitamlaarabi]

[each file is identified in its name with: powertrain, body type, activity: driving]

speed_bin (or average in that case specify time interval e.g. speed_average_10min)
grade: slope (keep neutral for now)
weight_bin_kg (keep neutral for LDV)
age_bin: age of the vehicle
county: Id of the county
geometry: county geometry
rate_pm_2_5
rate_nox
rate_pm10
rate_sox
rate_nh3
rate_voc
rate_co2
rate_hc
rate_co