Concurrencies commonly called by both numbers

[MNHighwayMan]

I-41/US-41.

* kphoger ducks and runs for cover.

But wouldn't that imply that people are calling it "forty-one/forty-one"?

[Avalanchez71]

Is I-41 and US 41 co-signed?

[kphoger]

Is I-41 and US 41 co-signed?

I-41/US-41.

* kphoger ducks and runs for cover.

But wouldn't that imply that people are calling it "forty-one/forty-one"?

People who stutter.

Is I-41 and US 41 co-signed?

(can of worms)

[roadman65]

I often wondered about US 1 & 9 in NJ.  Yes signs call it now the 1 & 9 and the traffic reporters called it one and nine, but many who lived where I grew up called it Route 1 for the most part. 

[hbelkins]

Cincinnati traffic reporters refer to "71/75" for northern Kentucky and "71" and "75" separately for Ohio.

[Rothman]

Although I think people in eastern Kentucky (around Floyd County) refer to US 23/US 460 as "The Four-Lane," I swear I've heard people refer to it by both of its routes occasionally.

[bing101]

Downtown connector Atlanta refered to I-75/I-85.

[Road Hog]

The concurrency of US 67 & US 167 in Arkansas is referred to by most in the area as "67-167."

I wonder how they will do down there as that road eventually becomes part of an extended I-57 (30?)... Us Missourians aren't taking kindly to the conversions of US 40-61 and US 71, respectively, to Interstates 64 and 49.

I imagine it'll still be called 67-167 for quite some time after I-57 is signed. It's been called that since the early 1960s, so old habits will die hard.

[GaryV]

Cincinnati traffic reporters refer to "71/75" for northern Kentucky and "71" and "75" separately for Ohio.

Given that the concurrency in OH is less than a mile, that's not too surprising.

[Finrod]

In Atlanta, in addition to I-75-85 (aka the Downtown Connector) and US 19-41 on the south side, I've also heard Georgia 400 outside the Perimeter where it has a concurrency with US 19 called 19/400 before, but more commonly it's just called 400.

[mrsman]

In Southern California, traffic reports commonly refer to the 57/60 and the 60/215.

Usually California doesn't do multiplexed routes, so the 60/215 is officially just I-215 (the definition of CA-60 has a break). However, the definitions of CA-60 and CA-57 don't have breaks, so they are technically multiplexed (although the bridge log and postmile services both list this segment as CA-60).

When I lived in CA, I don't remember hearing about these multiplexes referred to as such.   Granted, these are very short multiplexes.

Traditionally, the SoCAl reporters referrred to most freeways by name.  So an incident will be reported as "in Diamond Bar, on the Pomona Fwy eastbound at the split to the northbound 57."  Technically, this section is both 57 and 60, but to most people's mind Pomona Fwy = 60.  But yes, an incident like this would also affect through traffic on the 57 northbound as well.

I wonder if people refer to the 5/10 multiplex as such.  (I don't remember such usage in common talk.)  Again, the old traffic reporters would just say "on the Golden State just north of the East LA interchange at 4th Street."  This denotes a problem for the I-5 obviously, but also affects traffic on the I-10.  A big enough problem would affect every freeway coming out of the ELA interchange.  But since I never heard the term, I don't think anyone ever referred to the 5/10.  Sometimes, the road would be referred to as the transition of the Santa Monica to the San Bernardino, but this stretch is basically the transition of any of Santa Monica/Pomona/Santa Ana to the San Bernardino/Golden State so no good terminology exists for this road, other than calling it the Golden State Fwy and people having to know that traffic following the I-10 uses the Golden State Fwy for 1 mile on the transition from Santa Monica to San Bernardino.

I don't remember any reference to 215/60 in Riverside.  When I lived in SoCal,  (1970's to 1990's) there were very few traffic problems so far away from LA.  I think this stretch may have been referred to as the Moreno Valley Fwy and understood to affect both 60 and 215 traffic.  Heck for most of my days, the 215 wasn't even a full freeway (was known as CA-215) between the 60 and I-15 in Temecula so it was largely unreported territory by the traffic reporters.

I've been out of SoCal about three years now, but I'm still down there four-five times a year. KNX reguarly uses 60/215; 57/60 not as much (other than calling it the "57/60 split") but I still hear it at least once every time I'm there. I don't recall ever hearing mention of the 5/10 multiplex.

Over the time I lived there (1997-2014) they started backing off using freeway names as much (I assume as Caltrans started leaving the names off BGSs) - or they would use number and name - I hear "the 10 San Bernardino Freeway" or "the 170 portion of the Hollywood Freeway" and such a lot - but they still do use them.

I wonder for someone new to the area if it's at all confusing, as names are less and less common on signage, or if they manage to make the connections through repetition, context, and the few signs that are left.

Given the trend to not sign the names of the SoCal freeways, it makes sense to stop using the names, other than when it is helpful for navigation.  So for freeways that have one number and one name for its entire length (at least within most of the Southland) like 405/San Diego Freeway; 22/Garden Grove Freeway; 57/Orange Freeway; and  210/Foothill Fwy just use the number.

On the other hand, the names still are useful to distinguish whether a problem is east or west of Downtown on certain stretches.  That is why you still would hear references to the 10/Santa Monica and 10/San Bernardino; 5/Golden State and 5/Santa Ana; 101/Ventura; 134/Ventura; 170/Hollywood; 101/Hollywood; 101/Santa Ana; 110/Harbor; and 110/Arroyo Seco.  Correct me if I'm wrong, but these are probably the only ones that are still named in traffic reports.

The 91 freeway also has different names, but there is quite a bit of confusion as to whether the western part should be the Artesia Fwy, Redondo Beach Fwy, or Gardena Fwy.  I believe this is only referred to as the 91 today.

[jp the roadgeek]

Twice in the past week, I heard a local TV reporter commit a faux paux for our area.  The Berlin Turnpike (US 5/CT 15) is most often referred to either by it's name, or route 15.  Twice, a reporter mentioned an accident on route 5 in Berlin.  The only parts of route 5 that are referred as such are the standalone parts from Meriden south and East Hartford north.  It's almost as bad a local faux paux as referring to any duplexed portion of route 202 as route 202 rather than route 6, route 7, route 44 or route 10.

[SSOWorld]

Any Wisconsinites want to contribute, whether I-90/94/39 between Madison and Portage, and then I-90/94 until Tomah, is locally designated as?

still referred to by 90/94 from inside Madison (on the signs)

I've never really heard I-39/US 51 in IL called by both, nor I-90/I-39 -- thats still the Northwest/Jane Addams Tollway

The Tollway - or I-90. 

I-90/94 in Chicago is commonly known as the Dan Ryan Expressway (south of the Jane Byrne Circle Interchange) and (JF)Kennedy Expressway (north of the Jane Byrne Circle), not by route numbers, anyway

Already covered.

I-41/US-41.

* kphoger ducks and runs for cover.

But wouldn't that imply that people are calling it "forty-one/forty-one"?

In general Wisconsinites refer to any route as Highway ##.  Thus where you refer to this one is Highway 41.  Old abbreviations? HWY 41.  Locals would still refer to it as Highway 45 if they didn't think about it.  Also I-94 south of Milwaukee - Highway 94.  I-41 is just a fart.

I-39 is an odd duck.  It gets referred to by the officials all the way through (in general the DOT refers to the combo as I-90 from Tomah to Cascade Mt. and as I-39 from there to the IL state line in official DOT documentation.

[US 89]

Twice in the past week, I heard a local TV reporter commit a faux paux for our area.  The Berlin Turnpike (US 5/CT 15) is most often referred to either by it's name, or route 15.  Twice, a reporter mentioned an accident on route 5 in Berlin.  The only parts of route 5 that are referred as such are the standalone parts from Meriden south and East Hartford north.  It's almost as bad a local faux paux as referring to any duplexed portion of route 202 as route 202 rather than route 6, route 7, route 44 or route 10.

So the state route number takes precedence over the US number? That's really weird to me.

[jp the roadgeek]

Twice in the past week, I heard a local TV reporter commit a faux paux for our area.  The Berlin Turnpike (US 5/CT 15) is most often referred to either by it's name, or route 15.  Twice, a reporter mentioned an accident on route 5 in Berlin.  The only parts of route 5 that are referred as such are the standalone parts from Meriden south and East Hartford north.  It's almost as bad a local faux paux as referring to any duplexed portion of route 202 as route 202 rather than route 6, route 7, route 44 or route 10.

So the state route number takes precedence over the US number? That's really weird to me.

In the case of 202: 6, 7, and 44 are US routes that US 202 piggybacks on as it travels generally southwest to northeast, plus US 202's routing through CT was changed in 1974.  The reason why CT (and MA) 10 take precedence is because route 10 is a multi-state (also goes into NH) route that is primarily north-south, and 202 turns from east-west on the 44 duplex to north-south on the 10 duplex in Avon, then leaves to the east in Westfield, MA.

As for 15 over 5: 15 is the thru route at both ends of the duplex.  At the south end, US 5 transitions to a 2 lane city street as it leaves the turnpike while 15 becomes the Wilbur Cross Parkway. At the north end, US 5 exits from the expressway while 15 continues another mile on the expressway to merge into I-84 and end (use to extend to Sturbridge, MA).

[LoveFishChicken7577]

39/90 and 90/94 are both referred to as such in Wisconsin.

[andrepoiy]

Ontario Highway 35/115 is referred to as such.

There is also the QEW/403 concurrency, but I'm not sure if people say both...