Transportation general
National Transportation Data Archive
The National Transportation Data Archives (NTDA) includes national transportation data sets of historical significance, BTS data sets that have been superseded by new editions, and data sets contributed to the National Transportation Library.
Commodity Flow Survey prior to 2017...Transportation Geography of the United States
The Bureau of Transportation Statistics (BTS) has released a newly updated double-sided wall map, Transportation Geography of the United States. The front of this map features a reference map of select U.S. transportation infrastructure and connections, including the National Highway System...