Summarizes average annual daily traffic meters (aadtm) traveled
on F1 and F2 roadways within buffer distance of each
s2 cell as totals per vehicle class (trucks_buses, tractor_trailer,
and passenger); dates are not used to link to traffic data.
Arguments
- x
a s2_cell_dates vector (see
?s2cd)- buffer
distance from s2 cell (in meters) to summarize data
- ...
passed to
stow::stow(). Thepackageandsubdirarguments are fixed by geomarker.
Value
data frame with one row per input location and numeric traffic
summaries aadtm_trucks_buses, aadtm_tractor_trailer, and
aadtm_passenger
Details
Traffic data are derived from the final 2024 Highway Performance Monitoring System (HPMS) File Geodatabase published by the Bureau of Transportation Statistics. Only roads with F_SYSTEM classification of 1 ("interstate") or 2 ("principal arterial - other freeways and expressways") are used. Passenger vehicles (FHWA 1-3) are calculated as the total minus FHWA class 4-7 (single unit) and 8-13 (combination). FHWA documents substantial missing portions of the 2024 data for North Dakota and New Jersey. In addition, 55 retained roadway sections report single-unit plus combination AADT greater than total AADT; the documented passenger-vehicle subtraction is preserved for those source records rather than silently modifying them.
The processed traffic data are distributed separately from the R package as
a GeoPackage asset attached to a versioned geomarker data release. The file is
saved as a durable managed local copy in the get_traffic_summary
directory the first time it is required and reused on subsequent calls.
References
https://www.arcgis.com/home/item.html?id=5e6a977c2d7c4ec1bdc82e684d3384f2
https://github.com/FHWA/HPMS/blob/2024-HPMS/README_2024_HPMS_All.md
Examples
local({
withr::local_envvar(
R_USER_DATA_DIR = fs::path_package("geomarker", "gmrkr--8841"),
R_GEOMARKER_NO_DOWNLOAD = "true"
)
print(get_traffic_summary(s2cd_example_cincy(), buffer = 1500))
})
#> Using managed local copy: /home/runner/work/_temp/Library/geomarker/gmrkr--8841/R/geomarker/stow/get_traffic_summary/09ca5f3bbcbd7e24--hpms_2024_f12_aadt.gpkg
#> Summarizing HPMS 2024 traffic for 100 unique locations in 1 region...
#> ...processed 7,122 regional roadway candidates
#> aadtm_trucks_buses aadtm_tractor_trailer aadtm_passenger
#> 1 0 0 0
#> 2 0 0 0
#> 3 0 0 0
#> 4 4961110 16846526 81547376
#> 5 0 0 0
#> 6 0 0 0
#> 7 0 0 0
#> 8 0 0 0
#> 9 0 0 0
#> 10 0 0 0
#> 11 0 0 0
#> 12 0 0 0
#> 13 0 0 0
#> 14 0 0 0
#> 15 0 0 0
#> 16 0 0 0
#> 17 5538972 29764457 70803702
#> 18 0 0 0
#> 19 0 0 0
#> 20 0 0 0
#> 21 0 0 0
#> 22 0 0 0
#> 23 0 0 0
#> 24 0 0 0
#> 25 0 0 0
#> 26 0 0 0
#> 27 2415859 3221145 48018589
#> 28 8824664 21698611 139230241
#> 29 7320889 28395602 167692070
#> 30 0 0 0
#> 31 0 0 0
#> 32 0 0 0
#> 33 0 0 0
#> 34 9293870 11787979 205604585
#> 35 0 0 0
#> 36 0 0 0
#> 37 0 0 0
#> 38 0 0 0
#> 39 0 0 0
#> 40 0 0 0
#> 41 0 0 0
#> 42 0 0 0
#> 43 0 0 0
#> 44 0 0 0
#> 45 0 0 0
#> 46 0 0 0
#> 47 0 0 0
#> 48 0 0 0
#> 49 0 0 0
#> 50 0 0 0
#> 51 3753537 46166611 75752179
#> 52 0 0 0
#> 53 0 0 0
#> 54 0 0 0
#> 55 0 0 0
#> 56 0 0 0
#> 57 0 0 0
#> 58 0 0 0
#> 59 0 0 0
#> 60 0 0 0
#> 61 0 0 0
#> 62 0 0 0
#> 63 0 0 0
#> 64 0 0 0
#> 65 0 0 0
#> 66 0 0 0
#> 67 0 0 0
#> 68 0 0 0
#> 69 0 0 0
#> 70 0 0 0
#> 71 8327928 13004000 155939003
#> 72 0 0 0
#> 73 0 0 0
#> 74 0 0 0
#> 75 0 0 0
#> 76 0 0 0
#> 77 0 0 0
#> 78 0 0 0
#> 79 0 0 0
#> 80 0 0 0
#> 81 0 0 0
#> 82 0 0 0
#> 83 0 0 0
#> 84 17111835 19809391 297113747
#> 85 1075430 5097908 25614502
#> 86 0 0 0
#> 87 0 0 0
#> 88 0 0 0
#> 89 0 0 0
#> 90 0 0 0
#> 91 0 0 0
#> 92 0 0 0
#> 93 0 0 0
#> 94 0 0 0
#> 95 0 0 0
#> 96 0 0 0
#> 97 1923088 1125878 49969807
#> 98 0 0 0
#> 99 0 0 0
#> 100 0 0 0