Lightest Traveled Freeway Segment in Your State

[sparker]

Without looking at AADT figures, I'd "guesstimate" that the lightest traveled in Northern California would likely include:
(1) US 101 northeast of Crescent City.
(2) CA 29 near Lakeport in Lake County.
(3) CA 20/49 through Nevada City. 

[Hwy 61 Revisited]

I-476 north of Keyser Ave has an average AADT of ~8000, IIRC.

[webny99]

Jumping in on the discussion to say that a Super-2 doesn't have to have interchanges or be divided. It has more to do with the standards to which it's built, shoulder width, ROW, and so on. NY 104 from Williamson to Wolcott is definitely a Super-2 IMO, even though it has no exits except for one half-diamond at Wolcott.

[Max Rockatansky]

Without looking at AADT figures, I'd "guesstimate" that the lightest traveled in Northern California would likely include:
(1) US 101 northeast of Crescent City.
(2) CA 29 near Lakeport in Lake County.
(3) CA 20/49 through Nevada City.

What does CA 132 pull around the Tracy Area?

[jp the roadgeek]

For CT, other than the obvious CT 11; other candidates include CT 25 north of the Merritt, US 7 north of the Federal Rd exit, CT 8 between Torrington and Winsted, all of CT 40, and the US 6 Willimantic Bypass.

[Roadgeekteen]

For CT, other than the obvious CT 11; other candidates include CT 25 north of the Merritt, US 7 north of the Federal Rd exit, CT 8 between Torrington and Winsted, all of CT 40, and the US 6 Willimantic Bypass.

What about CT 695?

[3467]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

[Roadgeekteen]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

[Flint1979]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

[sprjus4]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

I-55 to I-74 - 2 hours, 42 minutes; 167 miles
I-55 to I-80 to I-180 to IL-29 - 2 hours, 45 minutes; 164 miles

Probably not the most optimal routing, but it's not "that far west". Depending on traffic on I-55, it might be the preferred routing.

[kkt]

Without looking at AADT figures, I'd "guesstimate" that the lightest traveled in Northern California would likely include:
(1) US 101 northeast of Crescent City.
(2) CA 29 near Lakeport in Lake County.
(3) CA 20/49 through Nevada City. 

US 101 at Washington Blvd, AADT back 15,300.  Ahead 10,700.
North of the US 199 split, 101 is no longer a freeway.

CA 29 at Park Way in North Lakeport AADT back 12,500.  Ahead 10,200.

CA 20 Broad Street, Nevada City AADT back 25,200.  Ahead 17,100.

Here's one:  CA 299 in Blue Lake, Humbolt County, at Glendale AADT back 11,000.  Ahead 10,000.
 

[webny99]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

I-55 to I-74 - 2 hours, 42 minutes; 167 miles
I-55 to I-80 to I-180 to IL-29 - 2 hours, 45 minutes; 164 miles
Probably not the most optimal routing, but it's not "that far west". Depending on traffic on I-55, it might be the preferred routing.

It probably depends where in Peoria and where in Chicago more than traffic conditions.

[ilpt4u]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

I-55 to I-74 - 2 hours, 42 minutes; 167 miles
I-55 to I-80 to I-180 to IL-29 - 2 hours, 45 minutes; 164 miles
Probably not the most optimal routing, but it's not "that far west". Depending on traffic on I-55, it might be the preferred routing.

It probably depends where in Peoria and where in Chicago more than traffic conditions.

When I lived in Peoria (briefly), to get to Chicagoland I usually used US 24 or IL 116 to get to I-55

[vdeane]

I'm starting to wonder if whether one considers a "super-2" to be a freeway or not is largely based on whether or not one was familiar with the roadgeek community during the MTR days.

[Brandon]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

I-55 to I-74 - 2 hours, 42 minutes; 167 miles
I-55 to I-80 to I-180 to IL-29 - 2 hours, 45 minutes; 164 miles

Probably not the most optimal routing, but it's not "that far west". Depending on traffic on I-55, it might be the preferred routing.

I can guarantee you, from having driven I-180 often enough to make it count, that very little Chicago-Peoria traffic goes via I-180.  I've used it to get to the west side of Peoria from Joliet, but it's more common for traffic to leave I-80 at I-39 and then cut down to IL-17 and IL-89 to IL-116, if miles are a factor.  If it's just speed, then I-55 to I-74 is far more common.  As it is, there's not a lot of traffic that goes from Chicago to Peoria and vice versa.  It's almost as if they're in different states, worlds even.

[Flint1979]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

I-55 to I-74 - 2 hours, 42 minutes; 167 miles
I-55 to I-80 to I-180 to IL-29 - 2 hours, 45 minutes; 164 miles

Probably not the most optimal routing, but it's not "that far west". Depending on traffic on I-55, it might be the preferred routing.

Going to I-180 is an indirect route in the first place. Taking I-39 to IL-18 west to IL-89 south to IL-116 is a much more direct route. Taking I-55 to I-74 is probably quicker. But taking I-180 you go straight west then I-80 tilts to the north a little making you go further out of your way then you'd have to go south and then real with IL-29 after Hennepin.

I doubt anyone going between Chicago and Peoria is taking that route and as Brandon said there isn't much traffic going between them.

[jemacedo9]

PA (per PennDOT 2018 map): 
I-476 north of Keyser Ave 7,500
US 219 south of Somerset 3,500
US 291 north of US 22  5,000
PA 8 freeway north of I-80 7,200
PA 576 TOLL full length 6,200

[Flint1979]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

I-55 to I-74 - 2 hours, 42 minutes; 167 miles
I-55 to I-80 to I-180 to IL-29 - 2 hours, 45 minutes; 164 miles
Probably not the most optimal routing, but it's not "that far west". Depending on traffic on I-55, it might be the preferred routing.

It probably depends where in Peoria and where in Chicago more than traffic conditions.

When I lived in Peoria (briefly), to get to Chicagoland I usually used US 24 or IL 116 to get to I-55

Those are two good routes. I-74 kind of takes you out of the way going towards Bloomington.

[Brandon]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

I-55 to I-74 - 2 hours, 42 minutes; 167 miles
I-55 to I-80 to I-180 to IL-29 - 2 hours, 45 minutes; 164 miles
Probably not the most optimal routing, but it's not "that far west". Depending on traffic on I-55, it might be the preferred routing.

It probably depends where in Peoria and where in Chicago more than traffic conditions.

When I lived in Peoria (briefly), to get to Chicagoland I usually used US 24 or IL 116 to get to I-55

Those are two good routes. I-74 kind of takes you out of the way going towards Bloomington.

Except that I-74 is all freeway.  The other routes have sizable two-lane sections.
Here's a take from Google on the travel times and routes: https://goo.gl/maps/FvBoLqkgEySCPWmL6
1 hour 54 minutes to use I-80, I-39, IL-18, and IL-26.
2 hours 2 minutes to use either I-55 to IL-116 or I-55 to I-74.

[Flint1979]

I won't debate the super 2 but the Macomb Illinois bypass is a 2 lane freeway and it has not been around long enough for a traffic count but having traveled both Interstate 180 and the bypass I bet it's slightly lower.

I-180 at least probably gets some Chicago-Peoria traffic.

I don't think that anyone is going to drive that far west to get between Chicago and Peoria.

I-55 to I-74 - 2 hours, 42 minutes; 167 miles
I-55 to I-80 to I-180 to IL-29 - 2 hours, 45 minutes; 164 miles
Probably not the most optimal routing, but it's not "that far west". Depending on traffic on I-55, it might be the preferred routing.

It probably depends where in Peoria and where in Chicago more than traffic conditions.

When I lived in Peoria (briefly), to get to Chicagoland I usually used US 24 or IL 116 to get to I-55

Those are two good routes. I-74 kind of takes you out of the way going towards Bloomington.

Except that I-74 is all freeway.  The other routes have sizable two-lane sections.
Here's a take from Google on the travel times and routes: https://goo.gl/maps/FvBoLqkgEySCPWmL6
1 hour 54 minutes to use I-80, I-39, IL-18, and IL-26.
2 hours 2 minutes to use either I-55 to IL-116 or I-55 to I-74.

I think I would opt for I-74 considering that it's all freeway. The other two roads probably have a 55 mph speed limit max.

I think currently though isn't I-74 under construction in some areas between Bloomington and Peoria?

Also isn't it closer to 3 hours than 2?

[Flint1979]

As a matter of fact Google doesn't even tell you to take I-180 to get between Chicago and Hennepin. It tells you to take I-55 south to I-80 west to I-39 south to IL-71 west. So how's this route going to see any Peoria to Chicago traffic?

[sprjus4]

As a matter of fact Google doesn't even tell you to take I-180 to get between Chicago and Hennepin. It tells you to take I-55 south to I-80 west to I-39 south to IL-71 west. So how's this route going to see any Peoria to Chicago traffic?

Just because Google does not list it as an option does not mean it may not be used. I'm not saying it's a preferred or primary route by any means, but it could see some of that traffic here and there as an alternate. The mileage is shorter than the interstate, and the time is only a few more minutes. It's not "out of the way".

[NWI_Irish96]

At least until the new bridge is completed, the west leg of IN 912 will be the lightest traveled, being that the EB lanes are closed.

[Flint1979]

The reason that I-180 is too far west is because it's an indirect route. It wasn't built to be a Chicago to Peoria route and there isn't much of a demand for one either.

[sprjus4]

The reason that I-180 is too far west is because it's an indirect route.

Except that I-55 and I-74 is actually more mileage than I-180.