The AASHTO Subcommittee on Traffic Engineering (SCOTE) has recently updated their website to include the Interstate Control Cities Listings:
http://scote.transportation.org/Pages/default.aspx
The have also solicited member states for input on additions, deletions, and other changes. Presumably, the updated list will be approved during the AASHTO 2016 Annual Meeting in November, which is in Boston.
Quote from: AASHTO Interstate Control CitiesNote - A number of short, usually metropolitan, bypasses and loops have been omitted.
What constitutes as
short? I-287 is listed but the longer I-476 & 495 (MA) are not.
Also, there seems to be some
missing control cities; particularly for highways that don't end in a city (examples: the eastern I-76 goes beyond Philadelphia into NJ & I-93 goes south of Boston & Quincy).
Quote from: PHLBOS on August 19, 2016, 10:39:30 AM
Quote from: AASHTO Interstate Control CitiesNote - A number of short, usually metropolitan, bypasses and loops have been omitted.
What constitutes as short? I-287 is listed but the longer I-476 & 495 (MA) are not.
Also, there seems to be some missing control cities; particularly for highways that don't end in a city (examples: the eastern I-76 goes beyond Philadelphia into NJ & I-93 goes south of Boston & Quincy).
Not to mention anything for I-73, I-74 in NC, relatively short, yes, but not loops or spurs.
Quote from: PHLBOS on August 19, 2016, 10:39:30 AM
Quote from: AASHTO Interstate Control CitiesNote - A number of short, usually metropolitan, bypasses and loops have been omitted.
What constitutes as short? I-287 is listed but the longer I-476 & 495 (MA) are not.
Also, there seems to be some missing control cities; particularly for highways that don't end in a city (examples: the eastern I-76 goes beyond Philadelphia into NJ & I-93 goes south of Boston & Quincy).
The list posted on the SCOTE page appears to be the same as the 2000 list, which (IIRC) is the last time AASHTO officially updated it. However, many states, such as Massachusetts, have been using destinations that do not appear on the AASHTO list, but are still considered by FHWA to be official control cities for the purposes of signing.
Of course, Wilmington, Philadelphia, Chester and Trenton are only signed along I-95 past the DE Memorial/NJ Turnpike split, since they assume drivers coming north from Baltimore are going to bypass Philadelphia by using the Turnpike. But the PA Turnpike interchange will probably change that.
Their list misspells Asheville in the I-26 listing, though they got it right for I-40.
Bay St. Louis and Pascagoula for I-10. Only Louisiana cities listed for I-49. Looks like a case of copy and replace.