least important east to west interstate ending in zero that is not I-30?

[US 89]

I-40 might have more truck traffic, but I-10, I-80, and I-90 probably have higher AADT overall since they go through much larger cities.


Also, length doesn't equate to higher importance.  For the I-x5 Interstates, I-85 is one of the shortest, but is a very important and busy corridor for southern United States, making it probably more important than longer I-x5s such as I-15 or I-25 which mostly serve smaller cities.

You would call San Diego, Denver, Vegas, SLC, the Inland Empire, and Albuquerque small?

I would say that those western interstates are probably more important, since they are the only major roads for hundreds of miles.

You have a point about I-15. However, I-25 doesn't seem that important. Its major cities are Denver, Colorado Springs, Albuquerque, and (using corridor, but not on I-25 itself) El Paso, with many empty areas in between. You generally wouldn't use I-25 for any significant distance on a trip where both endpoints are nowhere near the I-25 corridor, unlike I-85, where I-95 to I-85 is reasonable for many trips from the Northeast to the Southeast.

Colorado front range traffic uses I-25.

That's 1's point. Front range traffic does use 25, but you wouldn't be using 25 unless your trip starts or ends near it.

[Roadgeekteen]

I-40 might have more truck traffic, but I-10, I-80, and I-90 probably have higher AADT overall since they go through much larger cities.


Also, length doesn't equate to higher importance.  For the I-x5 Interstates, I-85 is one of the shortest, but is a very important and busy corridor for southern United States, making it probably more important than longer I-x5s such as I-15 or I-25 which mostly serve smaller cities.

You would call San Diego, Denver, Vegas, SLC, the Inland Empire, and Albuquerque small?

I would say that those western interstates are probably more important, since they are the only major roads for hundreds of miles.

You have a point about I-15. However, I-25 doesn't seem that important. Its major cities are Denver, Colorado Springs, Albuquerque, and (using corridor, but not on I-25 itself) El Paso, with many empty areas in between. You generally wouldn't use I-25 for any significant distance on a trip where both endpoints are nowhere near the I-25 corridor, unlike I-85, where I-95 to I-85 is reasonable for many trips from the Northeast to the Southeast.

Colorado front range traffic uses I-25.

That's 1's point. Front range traffic does use 25, but you wouldn't be using 25 unless your trip starts or ends near it.

Billings-Van Horn?

[Flint1979]

I'd have to say I-70. It seems like I could choose another route and accomplish the same thing. West of Denver it's pretty useless especially in Utah.

[Buffaboy]

I-42

[Bickendan]

I-38

[NE2]

I-140.

Nobody has given anything less important than either I-140. Looks like I win.

[US 89]

I-140.

Nobody has given anything less important than either I-140. Looks like I win.

How about I-180 in WY, which isn't even up to Interstate standards?

[hbelkins]

I-140.

Nobody has given anything less important than either I-140. Looks like I win.

How about I-180 in WY, which isn't even up to Interstate standards?

If I'm not mistaken, it's signed N-S, not E-W.

[Flint1979]

I'm not sure that three digit interstates should count. It seems like the question is directed towards I-10, I-20, I-40, I-70, I-80 and I-90.

[Quillz]

I-16*

*I don't live in Georgia, so this is probably wrong.

[hotdogPi]

I-16*

*I don't live in Georgia, so this is probably wrong.

Since when does I-16 or I-16* end in 0?

[CapeCodder]

I-40 does not really go through much either.

WTF? 40 goes from Wilmington, NC to just outside of LA. When I've traveled it, it was full to the brim with semis and other vehicles.

Some cities served:

Knoxville, TN
Nashville, TN
Memphis, TN
Little Rock, AR
OKC
Amarillo, TX

[Pink Jazz]

I-40 does not really go through much either.

WTF? 40 goes from Wilmington, NC to just outside of LA. When I've traveled it, it was full to the brim with semis and other vehicles.

Some cities served:

Knoxville, TN
Nashville, TN
Memphis, TN
Little Rock, AR
OKC
Amarillo, TX

But the cities that it serves are mostly smaller than those on I-10, I-80, and I-90. This may actually be the reason why truckers prefer it over the others, to avoid the traffic in the major cities served by I-10/80/90, plus potential winter weather on I-80/90.

[TravelingBethelite]

I-40 does not really go through much either.

WTF? 40 goes from Wilmington, NC to just outside of LA. When I've traveled it, it was full to the brim with semis and other vehicles.

Some cities served:

Knoxville, TN
Nashville, TN
Memphis, TN
Little Rock, AR
OKC
Amarillo, TX

But the cities that it serves are mostly smaller than those on I-10, I-80, and I-90. This may actually be the reason why truckers prefer it over the others, to avoid the traffic in the major cities served by I-10/80/90, plus potential winter weather on I-80/90.

I-40, correct me if I'm wrong, seems like a pretty important corridor [in the U.S. highway system].

[Flint1979]

I-16*

*I don't live in Georgia, so this is probably wrong.

Since when does I-16 or I-16* end in 0?

And what does living in Georgia have to do with this?

[Flint1979]

I-40 does not really go through much either.

WTF? 40 goes from Wilmington, NC to just outside of LA. When I've traveled it, it was full to the brim with semis and other vehicles.

Some cities served:

Knoxville, TN
Nashville, TN
Memphis, TN
Little Rock, AR
OKC
Amarillo, TX

But the cities that it serves are mostly smaller than those on I-10, I-80, and I-90. This may actually be the reason why truckers prefer it over the others, to avoid the traffic in the major cities served by I-10/80/90, plus potential winter weather on I-80/90.

The major cities along I-40 generate plenty of traffic too. Just because they are smaller than cities along I-10, I-80 and I-90 doesn't mean I-40 doesn't see any traffic. What city along I-80 would you consider bigger than a city along I-40? I don't consider I-80 to go through NYC or Chicago either. I-80 misses a lot of bigger cities that aren't really that far away from it but you can't consider that they actually go through those cities.

[Pink Jazz]

I-40 does not really go through much either.

WTF? 40 goes from Wilmington, NC to just outside of LA. When I've traveled it, it was full to the brim with semis and other vehicles.

Some cities served:

Knoxville, TN
Nashville, TN
Memphis, TN
Little Rock, AR
OKC
Amarillo, TX

But the cities that it serves are mostly smaller than those on I-10, I-80, and I-90. This may actually be the reason why truckers prefer it over the others, to avoid the traffic in the major cities served by I-10/80/90, plus potential winter weather on I-80/90.

The major cities along I-40 generate plenty of traffic too. Just because they are smaller than cities along I-10, I-80 and I-90 doesn't mean I-40 doesn't see any traffic. What city along I-80 would you consider bigger than a city along I-40? I don't consider I-80 to go through NYC or Chicago either. I-80 misses a lot of bigger cities that aren't really that far away from it but you can't consider that they actually go through those cities.

But if I would guess, the total AADT (including both cars and trucks) is higher on I-10, I-80, and I-90 due to their cities being larger.

[Flint1979]

I-40 does not really go through much either.

WTF? 40 goes from Wilmington, NC to just outside of LA. When I've traveled it, it was full to the brim with semis and other vehicles.

Some cities served:

Knoxville, TN
Nashville, TN
Memphis, TN
Little Rock, AR
OKC
Amarillo, TX

But the cities that it serves are mostly smaller than those on I-10, I-80, and I-90. This may actually be the reason why truckers prefer it over the others, to avoid the traffic in the major cities served by I-10/80/90, plus potential winter weather on I-80/90.

The major cities along I-40 generate plenty of traffic too. Just because they are smaller than cities along I-10, I-80 and I-90 doesn't mean I-40 doesn't see any traffic. What city along I-80 would you consider bigger than a city along I-40? I don't consider I-80 to go through NYC or Chicago either. I-80 misses a lot of bigger cities that aren't really that far away from it but you can't consider that they actually go through those cities.

But if I would guess, the total AADT (including both cars and trucks) is higher on I-10, I-80, and I-90 due to their cities being larger.

It probably is in those cities but outside of those cities I would assume it's about the same. Since I-40 is a cross country highway it's pretty useful.

[Pink Jazz]

Note that in addition to traffic, in the cases of I-80 and I-90, another reason why they are not favored for truck traffic is due to the potential for extreme winter weather.  I-40 can see some winter weather as well in some areas, but it generally isn't as bad as I-80 or I-90.

[Flint1979]

Note that in addition to traffic, in the cases of I-80 and I-90, another reason why they are not favored for truck traffic is due to the potential for extreme winter weather.  I-40 can see some winter weather as well in some areas, but it generally isn't as bad as I-80 or I-90.

That would be correct considering I-40 is much further south. I've never traveled on I-80 west of Des Moines or I-90 west of Rochester, Minnesota but I'm just assuming that in the Rockies it can get pretty bad in the winter. I-70 would be on that list too but I don't consider I-70 a "true" cross country highway since it ends in Utah.

[hotdogPi]

Note that in addition to traffic, in the cases of I-80 and I-90, another reason why they are not favored for truck traffic is due to the potential for extreme winter weather.  I-40 can see some winter weather as well in some areas, but it generally isn't as bad as I-80 or I-90.

That would be correct considering I-40 is much further south. I've never traveled on I-80 west of Des Moines or I-90 west of Rochester, Minnesota but I'm just assuming that in the Rockies it can get pretty bad in the winter. I-70 would be on that list too but I don't consider I-70 a "true" cross country highway since it ends in Utah.

I-70 passes through several larger cities, though: Denver, Kansas City, St. Louis*, Indianapolis, Columbus, and Baltimore.

*St. Louis isn't actually that large, but it's still considered a major city.

[Flint1979]

Note that in addition to traffic, in the cases of I-80 and I-90, another reason why they are not favored for truck traffic is due to the potential for extreme winter weather.  I-40 can see some winter weather as well in some areas, but it generally isn't as bad as I-80 or I-90.

That would be correct considering I-40 is much further south. I've never traveled on I-80 west of Des Moines or I-90 west of Rochester, Minnesota but I'm just assuming that in the Rockies it can get pretty bad in the winter. I-70 would be on that list too but I don't consider I-70 a "true" cross country highway since it ends in Utah.

I-70 passes through several larger cities, though: Denver, Kansas City, St. Louis*, Indianapolis, Columbus, and Baltimore.

*St. Louis isn't actually that large, but it's still considered a major city.

I-40 almost makes it to L.A. and passes through Albuquerque, Oklahoma City, Little Rock, Memphis, Nashville, Knoxville and some bigger cities in NC like Winston-Salem, Greensboro, Durham and Raleigh.  Some aren't really big cities but they are significant enough cities. I'm just saying that I-40 is pretty important.

[Quillz]

I-16*

*I don't live in Georgia, so this is probably wrong.

Since when does I-16 or I-16* end in 0?

Interstate 16.0

[Quillz]

I-16*

*I don't live in Georgia, so this is probably wrong.

Since when does I-16 or I-16* end in 0?

And what does living in Georgia have to do with this?

Well in addition to misreading the topic title, I don't know I-16's importance to Georgia. It struck me as a minorly important intrastate, as a lot of them tend to be.

[CNGL-Leudimin]

As said before, both I-50 and I-60 are way less important than I-30.