misc modifiers

functions that currently don't have better homes...

Usage

naei_route2spd(veh.type = NULL, route.def = NULL, route.source = NULL, ...)

Arguments

veh.type

(character) vehicle type e.g. bus

route.def

(character) route definition, for NAEI urban, rural or motorway

route.source

(character) route source, for NAEI

...

other arguments, often passed on.

Value

These estimated veh speed for the supplied route.

Note

These are currently the estimates used by embrs models...

References

naei_route2spd is based on speed estimates in:

Brown, P., Wakeling, D., Pang, Y. and Murrells, T. Methodology for the UK's road transport emissions inventory: Version for the 2016 National Atmospheric Emissions Inventory. Report for the Department for Business, Energy & Industrial Strategy. 2018. https://uk-air.defra.gov.uk/assets/documents/reports/cat07/1804121004_Road_transport_emissions_methodology_report_2018_v1.1.pdf