Spatial Surrogate for Hotelling


#1

The old US Spatial Surrogate Workbook (v093013) has the hotelling surrogate (Off-Network MD/HD; ID 251) listed as “Combination of 50% Industrial and 50% Highway Exits; proxy to start/stop/idling locations for MOVES RPP and RPV heavy/medium duty vehicles”. I’m assuming the new RPH emissions in MOVES should also use the same surrogate.
Has anyone found a better spatial surrogate source for hotelling? Or, is there an updated spatial surrogate workbook out there?


#2

The 2016alpha platform available on the EPA CHIEF website uses surrogate 205 for hotelling. The surrogate package can be found under:
ftp://newftp.epa.gov/air/emismod/2016/alpha/spatial_surrogates/

The surrogate uses a heavy duty diesel truck potential idling location weighting shapefile, which is also available on CHIEF:
ftp://newftp.epa.gov/air/emismod/2016/alpha/spatial_surrogates/shapefiles/2014shapefiles.extended_idle.tar.gz
The shapefile is made up of point locations for truck stops, rest areas, and other locations where trucks might have a long idle.