Processing distances for Metahit
inputs/190918_data_from_RTS: thousand km per year
inputs/VehicleType_LALevel: miles per year
inputs/five_road_data: thousand km per year
outputs/mode_road_city: thousand km, 6 years
outputs/mode_road_city_las: thousand km, 6 years
outputs/all_distances: km per week
generate_city_distances_using_road_links.R uses raw AADF (annual average daily flow) counts to estimate primary road distances and explores some methods for extrapolating to minor roads at the city-region level. Output = outputs/mode_5road_city.csv. (Saved here for reference - not used at present in mh.)
fleet_distances_for_injury.R uses raw AADF (annual average daily flow) counts to estimate motorway and other road distances for all years. Output = mh-injury/rds_storage/mode_road_city_year.csv.
generate_la_distances_for_travel_matrices.R uses raw AADF counts to estimate primary road distances for LAs and concatenates the total LA distance for use in metahit/mh-route-commutes for the allocation of trips of the synthetic population to LAs and road types. Output = outputs/mode_road_city_las.csv.
process_distances_for_execute.R takes the synthetic population and the travel-mapping matrices to compute travel summaries used in mh-execute. Output = mh-execute/inputs/distances.
compare_SP_to_RTS_total.R takes the synthetic population and the travel-mapping matrices to compute travel summaries for the whole of England to compare to five_road_data. Output = outputs/compare_rts_sp.
The main output is the set of processed distances for the execution of Metahit. In summary, they are:
| Label | Description | Dimensions | Units | City boundary | Modes | Who |
|---|---|---|---|---|---|---|
| emission | Contribution to AP emissions | Road, LA, mode | Distance | Travel within city | Car, motorcycle, bus, van | Drivers; all residents |
| noise | Contribution to noise emissions | Road, LA, mode | Distance | Travel within city | Car, motorcycle, bus, van | Drivers; all residents |
| cas | Travel at risk of injury | Road, city, mode, demography | Distance | Travel within city | Car, motorcycle, walk, cycle | Drivers and passengers; all residents |
| strike | Travel posing risk of injury | Road, city, mode, demography | Distance | Travel within city | Car, motorcycle, walk, cycle | Drivers; all residents |
| pa | Physical activity | Mode, id | Duration | Travel of city residents | Walk, cycle | Drivers; city residents |
| inh | Travel exposed to AP | Road, LA, mode, id | Duration | Travel of city residents within city | Car, motorcycle, bus, walk, cycle, tube, van | Drivers and passengers; city residents |
In italics are things not implemented, or not implemented properly.