Why are there still US routes with directional suffixes and single state US routes?
The current AASHTO policy on U.S. highways says routes with directional suffixes and single state US routes should be renumbered or decommissioned. However, the locals and traveling public are used to the existing signage, and would be confused if such renumberings took place. Former and existing split routes are listed at http://www.us-highways.com/usdiv.htm . Mar 4, 2002 7.3 Q: How old is the US route system? A: Planning of the US route system began in 1925, with a preliminary list (http://www.us-highways.com/1925bpr.htm) ready by October 30, 1925. After many revisions, most notably the changing of the route number connecting Chicago to L.A. from US 60 to US 66, AASHO members approved the US numbered system on November 11, 1926. Announcement of the route numbers chosen ( http://www.us-highways.com/1927us.htm ; map: http://www.okladot.state.ok.us/hqdiv/p-r-div/maps/misc-maps/1926us.pdf ) was delayed until January 2, 1927 in most states so maps could be printed. Nov 10, 2005 7.4 Why ha
The current AASHTO policy on U.S. highways says routes with directional suffixes and single state US routes should be renumbered or decommissioned. However, the locals and traveling public are used to the existing signage, and would be confused if such renumberings took place. Former and existing split routes are listed at http://www.us-highways.com/usdiv.htm . Mar 4, 2002 7.3 Q: How old is the US route system? A: Planning of the US route system began in 1925, with a preliminary list (http://www.us-highways.com/1925bpr.htm) ready by October 30, 1925. After many revisions, most notably the changing of the route number connecting Chicago to L.A. from US 60 to US 66, AASHO members approved the US numbered system on November 11, 1926. Announcement of the route numbers chosen ( http://www.us-highways.com/1927us.htm ; map: http://www.okladot.state.ok.us/hqdiv/p-r-div/maps/misc-maps/1926us.pdf ) was delayed until January 2, 1927 in most states so maps could be printed. Nov 10, 2005 7.4 Why ha
