TIGER address features (street address ranges) are read from compressed
addrfeat (address feature) shapefiles for each county and Census vintage.
If not already present, compressed addrfeat shapefiles are downloaded from
the Census TIGER HTTPS endpoint by default as durable managed local copies in
addr's stow/tiger_addr_feat directory. Files from the former unmanaged
TIGER layout are not searched.
When reading into R, the data is converted to one row per street side
(L/R) for use by taf_install().