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All functions

api_gofer()
Fetch API results Helper function sending the API call & parsing its response
ctpp_shares()
Add shares to CTPP table
psrc_ctpp_sum()
CTPP summary statistics
ctpp_tblsearch()
Search CTPP table codes
ctpp_varsearch()
Search CTPP variable codes
fetch_ctpp_from_api()
Fetch CTPP data from AASHTO api Helper to get_psrc_ctpp
fetch_ctpp_from_file()
Fetch ftp-format CTPP data from network location Helper to get_psrc_ctpp
get_psrc_ctpp()
Retrieve CTPP data
psrc_ctpp_stat()
Generic call for CTPP summary statistics
scale_code_lookup()
Correspondence table for CTPP codes, table type, and scale