I'm trying to build a "large" network dataset from OSM data in ArcGIS. Doing it all at once is taking a "long time" and seems like there is a big opportunity for it to fail at some point which would cause me to have to start over. I would like to be able to ingest smaller dataset so that the processing would not take so long.
Is it possible to merge multiple smaller network datasets to a single dataset (that doesn't require rebuilding the entire network) that I can make routing calls to? Or maybe to do routing calls across multiple network datasets?
For reference the dataset I used was an OSM extract for all of California. It is 11GB of xml. It took me 4.5 days to turn that into feature classes. It took another 5.5 days to create the network dataset. The gdb is now 19.6GB. This was running on a m3.medium. I would eventually like to be able to route anywhere in the US.