Mile markers matching control city distances

[CNGL-Leudimin]

In Spain, if you are on a route that starts in Madrid then the km-posts indicate the distance there. And not from any of the many beltways, but from the very city center. At least in theory, because I've found several sections along A-2 in which km-posts are closer or further apart, as they tried to match the old N-II (now spelt N-2) km-stones.

They do that in Italy too. On a 2008 visit to that country, I remember driving on the A1 freeway from Bologna to Milan, and I remember the zero-kilometer being where it meets the beltway outside of Milan. (Side note: I believe in most European cities, there tend not to be freeways inside the beltways for the most part, unlike in the States; there, the idea is to drive along the beltway to the exit closest to your destination and drive in on surface roads the rest of the way.)

They did. I remember when I was in Italy in 2010 there were two sets of km-posts on A4, one counting from Milan, the other from Turin. At the time they were in the process of unifying the km-posts, so that all of A4 used one single set along its entire route instead of resetting at Milan.

[Road Hog]

In Arkansas, I-40 to Fort Smith, I-30 to Texarkana and US 67 (future I-57) to Little Rock are close but a little off, because the center of each city are a few miles away from the zero points.

[roadman65]

I-55 South, I-70 West, and I-64 West in Illinois, all approaching Saint Louis, tho the number variance may be 1 mile

I-70 in IL actually continues I-270s mileage so not really

[kphoger]

I-55 South, I-70 West, and I-64 West in Illinois, all approaching Saint Louis, tho the number variance may be 1 mile

I-70 in IL actually continues I-270s mileage so not really

For I-55 and I-64, some mile markers are closer to the distance shown for East Saint Louis, and others for Saint Louis.

[machias]

Binghamton, New York is roughly 10 miles north of the PA border, so the I-81 mileposts don't work in that favor.

[Dirt Roads]

Binghamton, New York is roughly 10 miles north of the PA border, so the I-81 mileposts don't work in that favor.

Same thing with Huntington, West Virginia.  The I-64 mileposts are off about 10 miles as well.

[FrCorySticha]

I-94 in Montana approaching Billings

Billings is close but not quite. I-94's mile markers in Montana start at the terminus with I-90, which is about 4 miles outside of Billings:

https://goo.gl/maps/UyExDZUmanvrMJks8